{"id":2073,"date":"2026-06-26T08:19:24","date_gmt":"2026-06-26T08:19:24","guid":{"rendered":"https:\/\/gateatzeal.com\/blogs\/?p=2073"},"modified":"2026-06-12T10:43:19","modified_gmt":"2026-06-12T10:43:19","slug":"data-structures-algorithms-for-gate","status":"publish","type":"post","link":"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/","title":{"rendered":"Data Structures &amp; Algorithms for GATE: Most-Asked Topics in Last 10 Years"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">If you are preparing for the GATE Exam and you want to know where to focus your energy for maximum results, this blog is for you.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/gate2026.iitg.ac.in\/doc\/GATE2026_Syllabus\/DA_2026_Syllabus.pdf\" target=\"_blank\" rel=\"noopener\">Data Structures &amp; Algorithms for GATE<\/a><\/strong> is one of the highest-weightage subjects in GATE CS. It carries around 10\u201315 marks every year, making it one of the most important subjects you can master. And the best part? The topics that get asked are highly predictable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After analysing 10 years of GATE CS papers \u2014 from 2015 to 2024 \u2014 the team at <strong><a href=\"https:\/\/gateatzeal.com\/front\/contact_us\">Gate At Zeal Indore<\/a><\/strong> has identified exactly which topics appear most frequently, how many marks they carry, and what kind of questions to expect.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this blog, we will walk you through every important topic in Data Structures &amp; Algorithms for GATE, explain the concepts in simple words, and tell you how to prepare each one for the GATE Exam.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Let&#8217;s dive in.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Why_Data_Structures_Algorithms_is_So_Important_for_GATE_CS\" >Why Data Structures &amp; Algorithms is So Important for GATE CS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#DSA_Syllabus_for_GATE_CS_%E2%80%94_Complete_Overview\" >DSA Syllabus for GATE CS \u2014 Complete Overview<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Marks_Distribution_%E2%80%94_DSA_in_GATE_CS_Last_10_Years\" >Marks Distribution \u2014 DSA in GATE CS (Last 10 Years)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_1_Trees_%E2%80%94_The_Highest-Yielding_DSA_Topic\" >Topic 1: Trees \u2014 The Highest-Yielding DSA Topic<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Binary_Trees\" >Binary Trees<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Binary_Search_Trees_BST\" >Binary Search Trees (BST)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#AVL_Trees\" >AVL Trees<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Heaps\" >Heaps<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#B-Trees_and_B_Trees\" >B-Trees and B+ Trees<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_2_Graph_Algorithms_%E2%80%94_Second_Highest_Priority\" >Topic 2: Graph Algorithms \u2014 Second Highest Priority<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Graph_Representation\" >Graph Representation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#BFS_and_DFS\" >BFS and DFS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Shortest_Path_Algorithms\" >Shortest Path Algorithms<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Minimum_Spanning_Tree_MST\" >Minimum Spanning Tree (MST)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_3_Sorting_Algorithms_%E2%80%94_Always_in_the_GATE_Exam\" >Topic 3: Sorting Algorithms \u2014 Always in the GATE Exam<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_4_Hashing_%E2%80%94_Frequently_Tested_Often_Underestimated\" >Topic 4: Hashing \u2014 Frequently Tested, Often Underestimated<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Key_Concepts\" >Key Concepts<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Collision_Resolution_Techniques\" >Collision Resolution Techniques<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_5_Dynamic_Programming_%E2%80%94_A_Guaranteed_Scorer\" >Topic 5: Dynamic Programming \u2014 A Guaranteed Scorer<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Most-Asked_DP_Problems_in_GATE_Last_10_Years\" >Most-Asked DP Problems in GATE (Last 10 Years)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_6_Algorithm_Complexity_and_Recurrence_Relations\" >Topic 6: Algorithm Complexity and Recurrence Relations<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Time_Complexity_Classes\" >Time Complexity Classes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Recurrence_Relations\" >Recurrence Relations<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_7_Stacks_and_Queues_%E2%80%94_Fundamental_but_Important\" >Topic 7: Stacks and Queues \u2014 Fundamental but Important<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Stacks\" >Stacks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Queues\" >Queues<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_8_Linked_Lists_%E2%80%94_Pointer_Tracing_Questions\" >Topic 8: Linked Lists \u2014 Pointer Tracing Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_9_Greedy_Algorithms_%E2%80%94_Smart_and_Efficient\" >Topic 9: Greedy Algorithms \u2014 Smart and Efficient<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Topic_10_Divide_and_Conquer\" >Topic 10: Divide and Conquer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#10-Year_Topic_Frequency_Summary\" >10-Year Topic Frequency Summary<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#How_to_Prepare_Data_Structures_Algorithms_for_GATE\" >How to Prepare Data Structures &amp; Algorithms for GATE<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Step_1_Build_Conceptual_Clarity_First\" >Step 1: Build Conceptual Clarity First<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Step_2_Master_the_Formulas_and_Complexities\" >Step 2: Master the Formulas and Complexities<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Step_3_Solve_Previous_Year_Papers_Topic_by_Topic\" >Step 3: Solve Previous Year Papers Topic by Topic<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Step_4_Practice_Tracing_Algorithms\" >Step 4: Practice Tracing Algorithms<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Step_5_Take_Mock_Tests_Regularly\" >Step 5: Take Mock Tests Regularly<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#How_Gate_At_Zeal_Indore_Helps_You_Master_DSA\" >How Gate At Zeal Indore Helps You Master DSA<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Common_Mistakes_to_Avoid_in_DSA_Preparation\" >Common Mistakes to Avoid in DSA Preparation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#FAQs\" >FAQs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/gateatzeal.com\/blogs\/data-structures-algorithms-for-gate\/#Final_Thoughts\" >Final Thoughts<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Data_Structures_Algorithms_is_So_Important_for_GATE_CS\"><\/span>Why Data Structures &amp; Algorithms is So Important for GATE CS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Before we get into topic-wise analysis, let us understand why DSA deserves top priority in your GATE Exam preparation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. High Marks Weightage<\/strong> DSA consistently carries 10\u201315 marks out of 100 in GATE CS. In some years it has gone as high as 17 marks. No other single subject gives you this many marks reliably.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Foundation for Other Subjects<\/strong> DSA concepts appear in other subjects too. Tree traversal connects to Compiler Design. Graph algorithms connect to Computer Networks. Sorting and searching connect to DBMS. Mastering DSA strengthens your entire preparation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Predictable Patterns<\/strong> The GATE Exam has been testing the same core DSA topics for 10 straight years. Trees, graphs, sorting, hashing, and dynamic programming appear almost every single year. There are no surprises if you prepare well.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. Mix of Theory and Numericals<\/strong> DSA questions test both conceptual understanding and problem-solving ability. This means you can score well both in MCQs and numerical answer type (NAT) questions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At <strong>Gate At Zeal Indore<\/strong>, DSA is one of our flagship subjects, and our students consistently score 12+ marks out of 15 in this section with focused preparation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Also Read:<\/strong> <a href=\"https:\/\/gateatzeal.com\/blogs\/psu-recruitment-through-gate-2026-for-cse\/\">PSU Recruitment Through GATE 2026 for CSE \u2014 Full List &amp; Cutoffs<\/a><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-1024x576.png\" alt=\"Data Structures &amp; Algorithms for GATE\" class=\"wp-image-2074\" style=\"width:946px;height:auto\" srcset=\"https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-1024x576.png 1024w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-300x169.png 300w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-768x432.png 768w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-1536x864.png 1536w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-150x84.png 150w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-600x338.png 600w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-696x392.png 696w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-1392x783.png 1392w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-1068x601.png 1068w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-747x420.png 747w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-1493x840.png 1493w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DSA_Syllabus_for_GATE_CS_%E2%80%94_Complete_Overview\"><\/span>DSA Syllabus for GATE CS \u2014 Complete Overview<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The GATE Exam syllabus for Data Structures &amp; Algorithms includes:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Data Structures:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Arrays and Strings<\/li>\n\n\n\n<li>Linked Lists (Singly, Doubly, Circular)<\/li>\n\n\n\n<li>Stacks and Queues<\/li>\n\n\n\n<li>Trees (Binary Trees, BST, AVL Trees, B-Trees, Heaps)<\/li>\n\n\n\n<li>Graphs (Representation, Traversal)<\/li>\n\n\n\n<li>Hashing<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Algorithms:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sorting Algorithms<\/li>\n\n\n\n<li>Searching Algorithms<\/li>\n\n\n\n<li>Graph Algorithms (BFS, DFS, Shortest Path, MST)<\/li>\n\n\n\n<li>Dynamic Programming<\/li>\n\n\n\n<li>Greedy Algorithms<\/li>\n\n\n\n<li>Divide and Conquer<\/li>\n\n\n\n<li>Algorithm Complexity and Recurrence Relations<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">All of these are fair game in the GATE Exam, but some topics are asked far more frequently than others. Let&#8217;s get into the detailed analysis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Marks_Distribution_%E2%80%94_DSA_in_GATE_CS_Last_10_Years\"><\/span>Marks Distribution \u2014 DSA in GATE CS (Last 10 Years)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Here is an approximate breakdown of how marks are distributed across DSA topics in the GATE Exam:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Topic<\/th><th>Avg. Marks Per Year<\/th><th>Frequency<\/th><\/tr><\/thead><tbody><tr><td>Trees (BST, AVL, Heap, B-Tree)<\/td><td>3\u20134 marks<\/td><td>Every year<\/td><\/tr><tr><td>Graph Algorithms (BFS, DFS, MST, Shortest Path)<\/td><td>2\u20133 marks<\/td><td>Every year<\/td><\/tr><tr><td>Sorting Algorithms<\/td><td>1\u20132 marks<\/td><td>Almost every year<\/td><\/tr><tr><td>Dynamic Programming<\/td><td>1\u20132 marks<\/td><td>Most years<\/td><\/tr><tr><td>Hashing<\/td><td>1\u20132 marks<\/td><td>Most years<\/td><\/tr><tr><td>Stacks and Queues<\/td><td>1 mark<\/td><td>Most years<\/td><\/tr><tr><td>Linked Lists<\/td><td>1 mark<\/td><td>Frequently<\/td><\/tr><tr><td>Recurrence Relations &amp; Complexity<\/td><td>1\u20132 marks<\/td><td>Almost every year<\/td><\/tr><tr><td>Greedy Algorithms<\/td><td>1 mark<\/td><td>Frequently<\/td><\/tr><tr><td>Divide and Conquer<\/td><td>1 mark<\/td><td>Occasionally<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key insight<\/strong>: Trees and Graphs together account for nearly 5\u20137 marks every year. If you master just these two topics, you are already halfway to a great DSA score in the GATE Exam.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_1_Trees_%E2%80%94_The_Highest-Yielding_DSA_Topic\"><\/span>Topic 1: Trees \u2014 The Highest-Yielding DSA Topic<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trees are the single most tested topic in <strong>Data Structures &amp; Algorithms for GATE<\/strong>. They appear in some form in almost every GATE CS paper for the last 10 years.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Binary_Trees\"><\/span>Binary Trees<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A binary tree is a tree where each node has at most two children \u2014 left and right.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What GATE asks about binary trees:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Height, depth, and number of nodes calculations<\/li>\n\n\n\n<li>Tree traversals: Inorder, Preorder, Postorder, Level Order<\/li>\n\n\n\n<li>Reconstructing a tree from two given traversals<\/li>\n\n\n\n<li>Number of binary trees possible with n nodes (Catalan number formula)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked concept<\/strong>: Given Inorder and Preorder (or Postorder) traversals, reconstruct the tree and find the missing traversal. This has appeared in GATE almost every other year.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Formula to remember<\/strong>: Number of distinct binary trees with n nodes = C(n) = (2n)! \/ ((n+1)! \u00d7 n!) \u2014 the nth Catalan number.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Binary_Search_Trees_BST\"><\/span>Binary Search Trees (BST)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A BST is a binary tree where the left child is smaller than the parent and the right child is larger.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Also Read: <\/strong><a href=\"https:\/\/gateatzeal.com\/blogs\/how-to-start-gate-cse-2027-preparation\/\">How to Start GATE CSE 2027 Preparation: A Step-by-Step Guide for Beginners<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What GATE asks about BSTs:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Insertion and deletion operations<\/li>\n\n\n\n<li>Finding the height of a BST after insertions<\/li>\n\n\n\n<li>Number of BSTs possible with n keys<\/li>\n\n\n\n<li>Searching time complexity in best, worst, and average cases<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked concept<\/strong>: What is the worst-case height of a BST with n nodes? Answer: n\u22121 (when inserted in sorted order, the BST degenerates to a linked list).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"AVL_Trees\"><\/span>AVL Trees<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An AVL tree is a self-balancing BST where the height difference between left and right subtrees (balance factor) is at most 1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What GATE asks about AVL trees:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Insertion with rotations: LL, RR, LR, RL rotations<\/li>\n\n\n\n<li>Minimum number of nodes in an AVL tree of height h<\/li>\n\n\n\n<li>Maximum height of an AVL tree with n nodes<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked concept<\/strong>: Rotation questions. Given an AVL tree after an insertion, identify which rotation is needed. This is a GATE favourite.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Formula<\/strong>: Minimum nodes in AVL tree of height h: N(h) = N(h\u22121) + N(h\u22122) + 1, with N(0) = 1 and N(1) = 2.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Heaps\"><\/span>Heaps<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A heap is a complete binary tree where the parent is always greater than (max-heap) or less than (min-heap) its children.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What GATE asks about heaps:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Building a heap from an array (Heapify)<\/li>\n\n\n\n<li>Time complexity of heap operations: Insert O(log n), Delete O(log n), Build heap O(n)<\/li>\n\n\n\n<li>Heap sort algorithm and its time complexity<\/li>\n\n\n\n<li>K-th largest element using a heap<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked concept<\/strong>: Time complexity of building a heap. Many students say O(n log n), but the correct answer is O(n). This specific question has been asked multiple times in GATE.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"B-Trees_and_B_Trees\"><\/span>B-Trees and B+ Trees<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B-Trees are used in databases and file systems for efficient storage and retrieval.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What GATE asks:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Properties of a B-tree of order m<\/li>\n\n\n\n<li>Minimum and maximum keys in a B-tree of given order and height<\/li>\n\n\n\n<li>Difference between B-tree and B+ tree<\/li>\n\n\n\n<li>Insertion and deletion in B-trees<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Formula<\/strong>: In a B-tree of order m, each node can have at most m children and at least \u2308m\/2\u2309 children (except root).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_2_Graph_Algorithms_%E2%80%94_Second_Highest_Priority\"><\/span>Topic 2: Graph Algorithms \u2014 Second Highest Priority<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Graph algorithms are tested every single year in the GATE Exam and carry 2\u20133 marks. They involve both conceptual questions and numerical problems.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Graph_Representation\"><\/span>Graph Representation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Adjacency Matrix: Space O(V\u00b2), checking edge O(1)<\/li>\n\n\n\n<li>Adjacency List: Space O(V+E), better for sparse graphs<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>GATE question type<\/strong>: Given a graph, compare the space requirements of both representations for sparse vs. dense graphs.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-1024x576.png\" alt=\"Data Structures &amp; Algorithms for GATE\" class=\"wp-image-2075\" style=\"width:789px;height:auto\" srcset=\"https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-1024x576.png 1024w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-300x169.png 300w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-768x432.png 768w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-1536x864.png 1536w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-150x84.png 150w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-600x338.png 600w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-696x392.png 696w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-1392x783.png 1392w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-1068x601.png 1068w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-747x420.png 747w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE-1493x840.png 1493w, https:\/\/gateatzeal.com\/blogs\/wp-content\/uploads\/2026\/06\/Data-Structures-Algorithms-GATE.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"BFS_and_DFS\"><\/span>BFS and DFS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Breadth First Search (BFS) and Depth First Search (DFS) are the two fundamental graph traversal algorithms.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What GATE asks:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>BFS and DFS traversal order for a given graph<\/li>\n\n\n\n<li>Applications: BFS for shortest path in unweighted graphs, DFS for topological sort and cycle detection<\/li>\n\n\n\n<li>Time complexity: O(V+E) for both with adjacency list<\/li>\n\n\n\n<li>BFS tree vs. DFS tree<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked concept<\/strong>: Topological sorting using DFS. Given a Directed Acyclic Graph (DAG), find the topological order. This has appeared multiple times in GATE CS.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Also Read: <\/strong><a href=\"https:\/\/gateatzeal.com\/blogs\/gate-2027-notification-registration-dates\/\">GATE 2027 Notification, Registration Dates &amp; Eligibility \u2014 Latest Update<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Shortest_Path_Algorithms\"><\/span>Shortest Path Algorithms<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Dijkstra&#8217;s Algorithm<\/strong>: Finds shortest path from a single source in a weighted graph with non-negative weights.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Time complexity: O(V\u00b2) with adjacency matrix, O((V+E) log V) with priority queue<\/li>\n\n\n\n<li>Does NOT work with negative weight edges<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Bellman-Ford Algorithm<\/strong>: Handles negative weight edges, detects negative weight cycles.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Time complexity: O(VE)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Floyd-Warshall Algorithm<\/strong>: All-pairs shortest path.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Time complexity: O(V\u00b3)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked concept in GATE<\/strong>: Dijkstra&#8217;s algorithm step-by-step on a given graph. Trace the algorithm and find shortest distances from a source. Practice this until you can do it blindfolded.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Minimum_Spanning_Tree_MST\"><\/span>Minimum Spanning Tree (MST)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kruskal&#8217;s Algorithm<\/strong>: Picks edges in increasing order of weight, adds them if they don&#8217;t form a cycle.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Uses Union-Find (Disjoint Set) data structure<\/li>\n\n\n\n<li>Time complexity: O(E log E)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Prim&#8217;s Algorithm<\/strong>: Starts from a vertex, always adds the minimum weight edge connecting visited and unvisited vertices.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Time complexity: O(V\u00b2) or O(E log V) with priority queue<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked concept<\/strong>: Given a weighted graph, find the MST weight using Kruskal&#8217;s or Prim&#8217;s. Also: how many MSTs are possible if edge weights are equal?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_3_Sorting_Algorithms_%E2%80%94_Always_in_the_GATE_Exam\"><\/span>Topic 3: Sorting Algorithms \u2014 Always in the GATE Exam<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sorting is a perennial topic in <strong>Data Structures &amp; Algorithms for GATE<\/strong>. Every year, at least one question tests sorting knowledge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is a quick comparison of all major sorting algorithms:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Algorithm<\/th><th>Best Case<\/th><th>Average Case<\/th><th>Worst Case<\/th><th>Space<\/th><th>Stable?<\/th><\/tr><\/thead><tbody><tr><td>Bubble Sort<\/td><td>O(n)<\/td><td>O(n\u00b2)<\/td><td>O(n\u00b2)<\/td><td>O(1)<\/td><td>Yes<\/td><\/tr><tr><td>Selection Sort<\/td><td>O(n\u00b2)<\/td><td>O(n\u00b2)<\/td><td>O(n\u00b2)<\/td><td>O(1)<\/td><td>No<\/td><\/tr><tr><td>Insertion Sort<\/td><td>O(n)<\/td><td>O(n\u00b2)<\/td><td>O(n\u00b2)<\/td><td>O(1)<\/td><td>Yes<\/td><\/tr><tr><td>Merge Sort<\/td><td>O(n log n)<\/td><td>O(n log n)<\/td><td>O(n log n)<\/td><td>O(n)<\/td><td>Yes<\/td><\/tr><tr><td>Quick Sort<\/td><td>O(n log n)<\/td><td>O(n log n)<\/td><td>O(n\u00b2)<\/td><td>O(log n)<\/td><td>No<\/td><\/tr><tr><td>Heap Sort<\/td><td>O(n log n)<\/td><td>O(n log n)<\/td><td>O(n log n)<\/td><td>O(1)<\/td><td>No<\/td><\/tr><tr><td>Counting Sort<\/td><td>O(n+k)<\/td><td>O(n+k)<\/td><td>O(n+k)<\/td><td>O(k)<\/td><td>Yes<\/td><\/tr><tr><td>Radix Sort<\/td><td>O(nk)<\/td><td>O(nk)<\/td><td>O(nk)<\/td><td>O(n+k)<\/td><td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked GATE concepts in sorting:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Stability<\/strong>: Which sorting algorithms are stable? (Merge, Insertion, Bubble, Counting, Radix) \u2014 asked almost every year.<\/li>\n\n\n\n<li><strong>Quick Sort worst case<\/strong>: When does Quick Sort run in O(n\u00b2)? Answer: When the pivot is always the smallest or largest element (sorted or reverse-sorted input).<\/li>\n\n\n\n<li><strong>Merge Sort space complexity<\/strong>: O(n) auxiliary space \u2014 many students mistakenly say O(1).<\/li>\n\n\n\n<li><strong>Comparison-based sorting lower bound<\/strong>: Any comparison-based algorithm needs at least O(n log n) comparisons in the worst case. This is a theorem proved using decision trees.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">At <strong>Gate At Zeal Indore<\/strong>, we dedicate a full class to sorting algorithm comparisons because the questions are so predictable and so rewarding.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_4_Hashing_%E2%80%94_Frequently_Tested_Often_Underestimated\"><\/span>Topic 4: Hashing \u2014 Frequently Tested, Often Underestimated<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hashing appears in the GATE Exam almost every year and students who have not prepared it well often lose easy marks here.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Concepts\"><\/span>Key Concepts<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hash Function<\/strong>: Maps keys to positions in a hash table<\/li>\n\n\n\n<li><strong>Collision<\/strong>: When two keys map to the same position<\/li>\n\n\n\n<li><strong>Load Factor (\u03b1)<\/strong>: Number of keys \/ Size of hash table<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Collision_Resolution_Techniques\"><\/span>Collision Resolution Techniques<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Open Addressing:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Linear Probing: Check next slot sequentially \u2014 causes primary clustering<\/li>\n\n\n\n<li>Quadratic Probing: Check slots at quadratic intervals \u2014 causes secondary clustering<\/li>\n\n\n\n<li>Double Hashing: Use a second hash function \u2014 least clustering<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Chaining:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Each slot holds a linked list of all keys that hash to it<\/li>\n\n\n\n<li>Average search time: O(1 + \u03b1) where \u03b1 is the load factor<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked GATE concepts in hashing:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Insert a sequence of keys into a hash table using linear probing \u2014 trace every step<\/li>\n\n\n\n<li>Calculate the expected number of comparisons for successful\/unsuccessful search<\/li>\n\n\n\n<li>Compare open addressing vs. chaining for various load factors<\/li>\n\n\n\n<li>Identify which probing technique avoids primary clustering<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_5_Dynamic_Programming_%E2%80%94_A_Guaranteed_Scorer\"><\/span>Topic 5: Dynamic Programming \u2014 A Guaranteed Scorer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dynamic Programming (DP) questions in the GATE Exam test your ability to recognise and apply DP patterns. They are not as scary as they look once you know the most commonly tested problems.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Most-Asked_DP_Problems_in_GATE_Last_10_Years\"><\/span>Most-Asked DP Problems in GATE (Last 10 Years)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Longest Common Subsequence (LCS)<\/strong> Given two strings, find the length of their longest common subsequence.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Recurrence: LCS(i,j) = LCS(i\u22121,j\u22121)+1 if characters match, else max(LCS(i\u22121,j), LCS(i,j\u22121))<\/li>\n\n\n\n<li>Time complexity: O(mn), Space: O(mn)<\/li>\n\n\n\n<li><strong>Asked in GATE<\/strong>: 4+ times in last 10 years<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Longest Increasing Subsequence (LIS)<\/strong> Find the length of the longest strictly increasing subsequence.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O(n\u00b2) DP solution and O(n log n) binary search solution<\/li>\n\n\n\n<li><strong>Asked in GATE<\/strong>: 3+ times in last 10 years<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. 0\/1 Knapsack Problem<\/strong> Given items with weights and values, maximise value without exceeding weight limit.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Classic DP table filling problem<\/li>\n\n\n\n<li><strong>Asked in GATE<\/strong>: Multiple times \u2014 often as a NAT question<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. Matrix Chain Multiplication<\/strong> Find the optimal way to parenthesise a chain of matrices for minimum multiplications.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Asked in GATE<\/strong>: Conceptual and numerical questions<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. Coin Change Problem<\/strong> Minimum number of coins to make a given amount.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Asked in GATE<\/strong>: Occasionally as a NAT question<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key insight<\/strong>: In the GATE Exam, DP questions usually give you a specific input and ask for the output of the algorithm. So you need to be able to fill the DP table step by step, not just know the concept.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_6_Algorithm_Complexity_and_Recurrence_Relations\"><\/span>Topic 6: Algorithm Complexity and Recurrence Relations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This is a topic that cuts across all of DSA \u2014 every algorithm has a time complexity, and the GATE Exam tests whether you truly understand it.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Time_Complexity_Classes\"><\/span>Time Complexity Classes<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O(1) \u2014 Constant<\/li>\n\n\n\n<li>O(log n) \u2014 Logarithmic<\/li>\n\n\n\n<li>O(n) \u2014 Linear<\/li>\n\n\n\n<li>O(n log n) \u2014 Linearithmic<\/li>\n\n\n\n<li>O(n\u00b2) \u2014 Quadratic<\/li>\n\n\n\n<li>O(2\u207f) \u2014 Exponential<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Recurrence_Relations\"><\/span>Recurrence Relations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When algorithms are recursive, we use recurrence relations to find their time complexity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Master Theorem<\/strong>: The most important tool for solving recurrences of the form T(n) = aT(n\/b) + f(n).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Three cases determine whether f(n) dominates or the recursive part dominates.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked GATE examples:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T(n) = 2T(n\/2) + n \u2192 O(n log n) [Merge Sort]<\/li>\n\n\n\n<li>T(n) = T(n\/2) + 1 \u2192 O(log n) [Binary Search]<\/li>\n\n\n\n<li>T(n) = 2T(n\/2) + 1 \u2192 O(n) [Tree traversal]<\/li>\n\n\n\n<li>T(n) = T(n\u22121) + n \u2192 O(n\u00b2) [Insertion Sort]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked GATE concept<\/strong>: Apply the Master Theorem to a given recurrence. This question appears almost every year \u2014 sometimes with a twist where the Master Theorem doesn&#8217;t directly apply and you need the recursion tree method.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_7_Stacks_and_Queues_%E2%80%94_Fundamental_but_Important\"><\/span>Topic 7: Stacks and Queues \u2014 Fundamental but Important<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">While stacks and queues are simpler than trees and graphs, they carry at least 1 mark almost every year in the GATE Exam.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Stacks\"><\/span>Stacks<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>LIFO (Last In First Out) data structure<\/li>\n\n\n\n<li>Operations: Push, Pop, Peek \u2014 all O(1)<\/li>\n\n\n\n<li><strong>Applications<\/strong>: Expression evaluation, Infix to Postfix conversion, Function call stack, Backtracking<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked GATE concept<\/strong>: Infix to Postfix conversion using a stack. Given an expression, trace the stack operations and find the postfix form. Also: evaluate a given postfix expression.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Queues\"><\/span>Queues<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>FIFO (First In First Out) data structure<\/li>\n\n\n\n<li>Types: Simple Queue, Circular Queue, Deque (Double-ended), Priority Queue<\/li>\n\n\n\n<li><strong>Applications<\/strong>: BFS, CPU scheduling (Round Robin), Printer spooling<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked GATE concept<\/strong>: Circular queue operations \u2014 when is the queue full? When is it empty? How many elements can a circular queue of size n hold? Answer: n\u22121 (one slot is wasted to distinguish full from empty).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_8_Linked_Lists_%E2%80%94_Pointer_Tracing_Questions\"><\/span>Topic 8: Linked Lists \u2014 Pointer Tracing Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Linked list questions in the GATE Exam are usually about tracing pointer operations and understanding what happens to the list after a series of operations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What GATE asks:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reverse a linked list \u2014 pointer tracing<\/li>\n\n\n\n<li>Detect a cycle in a linked list (Floyd&#8217;s algorithm)<\/li>\n\n\n\n<li>Find the middle element<\/li>\n\n\n\n<li>Merge two sorted linked lists<\/li>\n\n\n\n<li>Delete a node given only a pointer to that node<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked concept<\/strong>: Reversing a linked list iteratively using three pointers. GATE often gives you code for this and asks what the output is after execution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Also commonly asked<\/strong>: Time and space complexity comparisons between arrays and linked lists for various operations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_9_Greedy_Algorithms_%E2%80%94_Smart_and_Efficient\"><\/span>Topic 9: Greedy Algorithms \u2014 Smart and Efficient<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Greedy algorithms make locally optimal choices at each step, hoping to reach a global optimum.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked GATE problems:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Activity Selection Problem<\/strong>: Select maximum number of non-overlapping activities \u2014 sort by finish time and greedily pick.<\/li>\n\n\n\n<li><strong>Huffman Coding<\/strong>: Build an optimal prefix-free encoding tree \u2014 always merge the two minimum frequency nodes.<\/li>\n\n\n\n<li><strong>Fractional Knapsack<\/strong>: Unlike 0\/1 Knapsack, items can be broken \u2014 sort by value\/weight ratio and greedily pick.<\/li>\n\n\n\n<li><strong>Job Sequencing with Deadlines<\/strong>: Maximise profit by scheduling jobs before their deadlines.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key distinction<\/strong>: Greedy works for fractional knapsack but NOT for 0\/1 knapsack. This distinction is a favourite GATE question.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Topic_10_Divide_and_Conquer\"><\/span>Topic 10: Divide and Conquer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Divide and Conquer splits a problem into smaller subproblems, solves them, and combines results.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked GATE problems:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Merge Sort (covered in sorting)<\/li>\n\n\n\n<li>Binary Search: O(log n) search in sorted array<\/li>\n\n\n\n<li>Strassen&#8217;s Matrix Multiplication: Reduces matrix multiplication from O(n\u00b3) to O(n^2.81)<\/li>\n\n\n\n<li>Finding Maximum and Minimum: Using divide and conquer \u2014 (3n\/2 \u2212 2) comparisons<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most-asked concept<\/strong>: Binary Search and its recurrence T(n) = T(n\/2) + O(1) = O(log n). Also: when does binary search NOT work? (Unsorted array, linked lists without random access.)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10-Year_Topic_Frequency_Summary\"><\/span>10-Year Topic Frequency Summary<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Here is a clean summary of how often each topic has appeared in GATE CS over the last 10 years:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Topic<\/th><th>Years Appeared (out of 10)<\/th><\/tr><\/thead><tbody><tr><td>Trees (BST, AVL, Heap, B-Tree)<\/td><td>10\/10<\/td><\/tr><tr><td>Graph Algorithms<\/td><td>10\/10<\/td><\/tr><tr><td>Sorting Algorithms<\/td><td>9\/10<\/td><\/tr><tr><td>Algorithm Complexity \/ Recurrence<\/td><td>9\/10<\/td><\/tr><tr><td>Hashing<\/td><td>8\/10<\/td><\/tr><tr><td>Dynamic Programming<\/td><td>8\/10<\/td><\/tr><tr><td>Stacks and Queues<\/td><td>8\/10<\/td><\/tr><tr><td>Linked Lists<\/td><td>7\/10<\/td><\/tr><tr><td>Greedy Algorithms<\/td><td>7\/10<\/td><\/tr><tr><td>Divide and Conquer<\/td><td>6\/10<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trees and Graphs have appeared in every single GATE CS paper for the last 10 years. If you do nothing else, master these two.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Prepare_Data_Structures_Algorithms_for_GATE\"><\/span>How to Prepare Data Structures &amp; Algorithms for GATE<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Now that you know what to study, here is how to study it:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_1_Build_Conceptual_Clarity_First\"><\/span>Step 1: Build Conceptual Clarity First<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For every topic, start with the concept \u2014 not the code. Understand why an AVL tree rotates, why Dijkstra fails with negative edges, why Quick Sort has O(n\u00b2) worst case. Concepts first, implementation second.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_2_Master_the_Formulas_and_Complexities\"><\/span>Step 2: Master the Formulas and Complexities<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GATE tests time and space complexity constantly. Make a formula sheet covering every algorithm&#8217;s best, average, and worst case complexity. Revise it every week.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_3_Solve_Previous_Year_Papers_Topic_by_Topic\"><\/span>Step 3: Solve Previous Year Papers Topic by Topic<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is the single most effective strategy for <strong>Data Structures &amp; Algorithms for GATE<\/strong>. Go to a topic \u2014 say, AVL Trees \u2014 and solve every GATE question on AVL Trees from 2015 to 2024. You will see patterns emerge immediately.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_4_Practice_Tracing_Algorithms\"><\/span>Step 4: Practice Tracing Algorithms<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For graph algorithms (Dijkstra, Kruskal, Prim), sorting (Quick Sort, Merge Sort), and DP (LCS table), you must practise tracing \u2014 executing the algorithm step by step on a given example. GATE questions often show you an intermediate state and ask what comes next.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_5_Take_Mock_Tests_Regularly\"><\/span>Step 5: Take Mock Tests Regularly<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">After studying each topic, take a quiz. After completing the full DSA syllabus, take full-length DSA mock tests. Time yourself. The GATE Exam gives you roughly 1.8 minutes per mark \u2014 practise working within that constraint.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Gate_At_Zeal_Indore_Helps_You_Master_DSA\"><\/span>How Gate At Zeal Indore Helps You Master DSA<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">At <strong>Gate At Zeal Indore<\/strong>, we have built our DSA curriculum around exactly what the GATE Exam asks. Here is what makes our preparation different:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>10-Year Pattern Analysis<\/strong>: Every class is designed around real GATE questions. Students know exactly what to expect.<\/li>\n\n\n\n<li><strong>Algorithm Tracing Sessions<\/strong>: We don&#8217;t just teach algorithms \u2014 we trace them live on the board with multiple examples until every student can do it independently.<\/li>\n\n\n\n<li><strong>Weekly Topic Tests<\/strong>: After every major topic, students take a short test. This builds retention and identifies gaps early.<\/li>\n\n\n\n<li><strong>Doubt-Clearing Sessions<\/strong>: DSA can get tricky with pointer problems and complex recursion. Our dedicated doubt sessions ensure no student stays confused.<\/li>\n\n\n\n<li><strong>Previous Year Question Bank<\/strong>: We provide a curated question bank of 300+ DSA questions from previous GATE papers, organised topic by topic.<\/li>\n\n\n\n<li><strong>Performance Tracking<\/strong>: We track each student&#8217;s performance across topics and personalise guidance for weak areas.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Students who complete the full DSA program at <strong>Gate At Zeal Indore<\/strong> consistently score 12\u201315 marks out of 15 in this subject in the GATE Exam.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Mistakes_to_Avoid_in_DSA_Preparation\"><\/span>Common Mistakes to Avoid in DSA Preparation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Mistake 1: Focusing only on coding, not on analysis<\/strong> GATE does not ask you to write full code. It asks you to analyse, trace, and compare. Many students who are good coders still struggle in GATE because they haven&#8217;t practised analysis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Mistake 2: Memorising complexities without understanding<\/strong> If you don&#8217;t understand why Merge Sort is O(n log n), you will forget it under exam pressure. Understand the reasoning behind every complexity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Mistake 3: Skipping Dynamic Programming<\/strong> DP feels hard at first, but the same 5\u20136 problems appear in GATE repeatedly. LCS alone has been asked 4+ times. Skipping DP means giving away free marks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Mistake 4: Not practising NAT questions<\/strong> Numerical Answer Type questions have no options to guess from. Practice calculating exact values for hashing problems, DP table entries, and graph distances.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Mistake 5: Ignoring stability and properties of sorting<\/strong> Simple questions about stable sorting, in-place sorting, and comparison-based lower bounds appear almost every year. These are easy marks that students lose due to lack of attention.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q1. How many marks does Data Structures &amp; Algorithms carry in GATE CS every year?<\/strong> Data Structures &amp; Algorithms for GATE CS carries approximately 10\u201315 marks out of 100 every year. In some years it has gone as high as 17 marks, making it one of the most important subjects in the entire GATE Exam syllabus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q2. Which DSA topics are asked most frequently in GATE CS?<\/strong> Trees and Graph Algorithms have appeared in every GATE CS paper for the last 10 years. Sorting, Hashing, Dynamic Programming, and Recurrence Relations also appear almost every year. Together these topics account for 70\u201380% of all DSA marks in the GATE Exam.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q3. Is Dynamic Programming difficult to prepare for the GATE Exam?<\/strong> DP feels difficult at first, but the same 5\u20136 problems repeat in GATE year after year \u2014 LCS, LIS, 0\/1 Knapsack, Matrix Chain Multiplication, and Coin Change. Once you master these standard problems and practise filling DP tables, you can score full marks in DP questions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q4. What is the best way to study Graph Algorithms for GATE CS?<\/strong> Start with BFS and DFS traversal, then move to Dijkstra&#8217;s Shortest Path and Kruskal&#8217;s\/Prim&#8217;s MST algorithms. For each algorithm, practise tracing it step by step on a given graph. Previous year GATE questions on graphs are highly repetitive \u2014 solving 10 years of papers is the most effective preparation strategy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q5. How does Gate At Zeal Indore help students master Data Structures &amp; Algorithms for GATE?<\/strong> Gate At Zeal Indore provides a 10-year pattern-based curriculum, live algorithm tracing sessions, weekly topic tests, a curated question bank of 300+ previous year DSA questions, and personalised doubt-clearing sessions \u2014 helping students consistently score 12\u201315 marks out of 15 in DSA in the GATE Exam.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Final_Thoughts\"><\/span>Final Thoughts<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Data Structures &amp; Algorithms for GATE<\/strong> is the backbone of your GATE CS score. With 10\u201315 marks at stake every year, and with topics that repeat consistently, this is the one subject where consistent, focused preparation pays off the most.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The 10-year analysis shows clearly: master Trees, Graphs, Sorting, Hashing, and Dynamic Programming \u2014 and you will have a commanding score in DSA.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do not try to cover everything at once. Study topic by topic, practise previous year questions, trace algorithms until they become second nature, and revise regularly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At <strong>Gate At Zeal Indore<\/strong>, we have guided hundreds of students through this exact journey \u2014 from confusion to confidence, from average scores to IIT admissions. With the right guidance, the right material, and the right strategy, you can do it too.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The GATE Exam rewards preparation. Start today, stay consistent, and let the results follow.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>About Gate At Zeal Indore<\/strong> Gate At Zeal Indore is a premier GATE coaching institute in Indore, Madhya Pradesh. Known for expert faculty, structured curriculum, and outstanding results, Gate At Zeal Indore has helped hundreds of students crack the GATE Exam and secure seats at IITs, IISc, NITs, and top PSUs. For more information, visit our centre in Indore today.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you are preparing for the GATE Exam and you want to know where to focus your energy for maximum results, this blog is for you. Data Structures &amp; Algorithms for GATE is one of the highest-weightage subjects in GATE CS. It carries around 10\u201315 marks every year, making it one of the most important [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2076,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[43],"tags":[2383,2387,2386,2365,2376,2385,2377,910,2373,698,2372,125,1740,332,2363,2364,279,254,1798,610,2378,348,908,2381,2384,2382,2380,2368,2379],"class_list":["post-2073","post","type-post","status-publish","format-standard","has-post-thumbnail","category-dsa","tag-avl-tree-gate","tag-b-tech-cs-students-mp","tag-bankers-algorithm-gate","tag-best-gate-institute-indore","tag-data-structures-algorithms-for-gate","tag-dijkstra-algorithm-gate","tag-dsa-gate-cs","tag-dynamic-programming-gate","tag-engineering-students-indore","tag-gate-2026-preparation","tag-gate-aspirants-indore","tag-gate-at-zeal-indore","tag-gate-classes-indore","tag-gate-coaching-indore","tag-gate-coaching-madhya-pradesh","tag-gate-coaching-mp","tag-gate-cs-notes","tag-gate-cs-preparation","tag-gate-cs-syllabus-2026","tag-gate-exam-2026","tag-gate-institute-indore","tag-gate-preparation-indore","tag-graph-algorithms-gate","tag-hashing-gate-cs","tag-lcs-gate-cs","tag-recurrence-relations-gate","tag-sorting-algorithms-gate","tag-top-gate-coaching-indore","tag-trees-gate-cs"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/posts\/2073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/comments?post=2073"}],"version-history":[{"count":1,"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/posts\/2073\/revisions"}],"predecessor-version":[{"id":2077,"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/posts\/2073\/revisions\/2077"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/media\/2076"}],"wp:attachment":[{"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/media?parent=2073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/categories?post=2073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gateatzeal.com\/blogs\/wp-json\/wp\/v2\/tags?post=2073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}