Must Do Coding Questions for Companies like Amazon, Microsoft, Adobe, ...

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alt="News"></img> <span class='kebab_menu_news_text'>Follow</span> </a> </div> </div> </div> <div class="text"> <p dir="ltr"><span>The list in this article contains more than 200 questions. If you are looking for shorter list, please refer </span><a href="https://www.geeksforgeeks.org/top-75-dsa-questions/" target="_blank" rel="noopener"><b><strong>Top 75 DSA Questions</strong></b></a></p> <p dir="ltr"><b><strong>Note : </strong></b><span> Now you can track your progress of these questions </span><a href="https://gfgcdn.com/tu/RW6/" target="_blank" rel=""><b><strong> Complete Interview Preparation Course </strong></b></a><span> . </span></p> <p dir="ltr"><span> Preparing for Product-Based Companies ? Check Out </span><a href="https://www.geeksforgeeks.org/must-do-coding-questions-for-product-based-companies/" rel="noopener"><b><strong> Must Do Coding Questions for Product Based Companies </strong></b></a></p> <p dir="ltr"><b><strong> Topic : </strong></b></p> <div> <div style="width: 50%; float: left; text-align: left;"> <ul> <li><a href="#arrays"> Arrays </a></li> <li><a href="#string"> String </a></li> <li><a href="#LinkedList"> Linked List </a></li> <li><a href="#stack"> Stack and Queue </a></li> <li><a href="#trees"> Tree and BST </a></li> <li><a href="#heap"> Heap </a></li> <li><a href="#recursion"> Recursion </a></li> </ul> </div> <div style="width: 50%; float: right; text-align: left;"> <ul> <li><a href="#hashing"> Hashing </a></li> <li><a href="#graph"> Graph </a></li> <li><a href="#Greedy"> Greedy </a></li> <li><a href="#DP"> Dynamic Programming </a></li> <li><a href="#DC"> Divide and Conquer </a></li> <li><a href="#BT"> Backtracking </a></li> <li><a href="#bits"> Bit Magic </a></li> </ul> </div> </div> <p dir="ltr"><span>For preparing for interviews with companies like Amazon or Microsoft, the</span><a href="https://www.geeksforgeeks.org/geeksforgeeks-practice-best-online-coding-platform/" target="_blank" rel="noopener"><b><strong> GeeksforGeeks Online Practice Platform</strong></b></a><span> offers curated problem sets that mimic the challenges faced in these interviews.</span></p> <h3><span> Arrays </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/subarray-with-given-sum/0" rel="noopener"><span> Subarray with given sum </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/count-the-triplets/0" target="_blank" rel="noopener"><span> Count the triplets </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/kadanes-algorithm/0" rel="noopener"><span> Kadane’s Algorithm </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/missing-number-in-array/0" rel="noopener"><span> Missing number in array </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/merge-two-sorted-arrays/0/" target="_blank" rel="noopener"><span> Merge two sorted arrays </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/-rearrange-array-alternately/0/" target="_blank" rel="noopener"><span> Rearrange array alternatively </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/number-of-pairs/0/" target="_blank" rel="noopener"><span> Number of pairs </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/inversion-of-array/0/" target="_blank" rel="noopener"><span> Inversion of Array </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/sort-an-array-of-0s-1s-and-2s/0" rel="noopener"><span> Sort an array of 0s, 1s and 2s </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/equilibrium-point/0" rel="noopener"><span> Equilibrium point </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/leaders-in-an-array/0" rel="noopener"><span> Leaders in an array </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/minimum-platforms/0" rel="noopener"><span> Minimum Platforms </span></a></li> <li value="13"><a href="https://www.geeksforgeeks.org/problems/reverse-array-in-groups/0" rel="noopener"><span> Reverse array in groups </span></a></li> <li value="14"><a href="https://www.geeksforgeeks.org/problems/kth-smallest-element/0" rel="noopener"><span> K’th smallest element </span></a></li> <li value="15"><a href="https://www.geeksforgeeks.org/problems/trapping-rain-water/0" rel="noopener"><span> Trapping Rain Water </span></a></li> <li value="16"><a href="https://www.geeksforgeeks.org/problems/pythagorean-triplet/0" rel="noopener"><span> Pythagorean Triplet </span></a></li> <li value="17"><a href="https://www.geeksforgeeks.org/problems/chocolate-distribution-problem/0" rel="noopener"><span> Chocolate Distribution Problem </span></a></li> <li value="18"><a href="https://www.geeksforgeeks.org/problems/stock-buy-and-sell/0" rel="noopener"><span> Stock buy and sell </span></a></li> <li value="19"><a href="https://www.geeksforgeeks.org/problems/unsorted-array/0" rel="noopener"><span> Element with left side smaller and right side greater </span></a></li> <li value="20"><a href="https://www.geeksforgeeks.org/problems/convert-array-into-zig-zag-fashion/0" rel="noopener"><span> Convert array into Zig-Zag fashion </span></a></li> <li value="21"><a href="https://www.geeksforgeeks.org/problems/last-index-of-1/0" rel="noopener"><span> Last Index of 1 </span></a></li> <li value="22"><a href="https://www.geeksforgeeks.org/problems/spirally-traversing-a-matrix/0" rel="noopener"><span> Spirally traversing a matrix </span></a></li> <li value="23"><a href="https://www.geeksforgeeks.org/problems/largest-number-formed-from-an-array/0" rel="noopener"><span> Largest Number formed from an Array </span></a></li> </ol> <p dir="ltr"><b><strong> Solved the above? </strong></b></p> <p><a href="#More Questions on Arrays" rel="noopener noreferrer"><span> Go for some more Questions </span></a></p> <div id="internal-promo-section"> <p dir="ltr"><span> It is important to have in-depth knowledge of the </span><b><strong> data structure </strong></b><span> and understanding of their working. If you wish to learn about the data structure and algorithms for the interview then you can check out our course </span><a href="https://gfgcdn.com/tu/Q2M/" rel="noopener noreferrer" target="_blank"><b><strong> Tech Interview 101 – From DSA to System Design </strong></b></a><span> to learn more about coding questions and more that are asked in the interview. </span></p> </div> <h3><span> String </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/reverse-words-in-a-given-string/0" rel="noopener"><span> Reverse words in a given string </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/permutations-of-a-given-string/0" rel="noopener"><span> Permutations of a given string </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/longest-palindrome-in-a-string/0" rel="noopener"><span> Longest Palindrome in a String </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/recursively-remove-all-adjacent-duplicates/0" rel="noopener"><span> Recursively remove all adjacent duplicates </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/check-if-string-is-rotated-by-two-places/0" rel="noopener"><span> Check if string is rotated by two places </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/roman-number-to-integer/0" rel="noopener"><span> Roman Number to Integer </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/anagram/0" rel="noopener"><span> Anagram </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/remove-duplicates/0" rel="noopener"><span> Remove Duplicates </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/form-a-palindrome/0" rel="noopener"><span> Form a Palindrome </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/longest-distinct-characters-in-string/0" rel="noopener"><span> Longest Distinct Characters in the string </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/implement-atoi/1" rel="noopener"><span> Implement Atoi </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/implement-strstr/1" rel="noopener"><span> Implement strstr </span></a></li> <li value="13"><a href="https://www.geeksforgeeks.org/problems/longest-common-prefix-in-an-array/0" rel="noopener"><span> Longest Common Prefix </span></a></li> </ol> <p dir="ltr"><b><strong> Solved the above? </strong></b></p> <p><a href="#More Questions on Strings" rel="noopener noreferrer"><span> Go for some more Questions </span></a></p> <h3><span> Linked List </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/finding-middle-element-in-a-linked-list/1" rel="noopener"><span> Finding middle element in a linked list </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/reverse-a-linked-list/1" rel="noopener"><span> Reverse a linked list </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/rotate-a-linked-list/1" rel="noopener"><span> Rotate a Linked List </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/reverse-a-linked-list-in-groups-of-given-size/1" rel="noopener"><span> Reverse a Linked List in groups of given size </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/intersection-point-in-y-shapped-linked-lists/1/" target="_blank" rel="noopener"><span> Intersection point in Y shaped linked lists </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/detect-loop-in-linked-list/1" rel="noopener"><span> Detect Loop in linked list </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/remove-loop-in-linked-list/1" rel="noopener"><span> Remove loop in Linked List </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/nth-node-from-end-of-linked-list/1" rel="noopener"><span> n’th node from end of linked list </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/flattening-a-linked-list/1" rel="noopener"><span> Flattening a Linked List </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/merge-two-sorted-linked-lists/1" rel="noopener"><span> Merge two sorted linked lists </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/intersection-of-two-linked-list/1" rel="noopener"><span> Intersection point of two Linked Lists </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/pairwise-swap-elements-of-a-linked-list-by-swapping-data/1" rel="noopener"><span> Pairwise swap of a linked list </span></a></li> <li value="13"><a href="https://www.geeksforgeeks.org/problems/add-two-numbers-represented-by-linked-lists/1" rel="noopener"><span> Add two numbers represented by linked lists </span></a></li> <li value="14"><a href="https://www.geeksforgeeks.org/problems/check-if-linked-list-is-pallindrome/1" rel="noopener"><span> Check if Linked List is Palindrome </span></a></li> <li value="15"><a href="https://www.geeksforgeeks.org/problems/implement-queue-using-linked-list/1" rel="noopener"><span> Implement Queue using Linked List </span></a></li> <li value="16"><a href="https://www.geeksforgeeks.org/problems/implement-stack-using-linked-list/1" rel="noopener"><span> Implement Stack using Linked List </span></a></li> <li value="17"><a href="https://www.geeksforgeeks.org/problems/given-a-linked-list-of-0s-1s-and-2s-sort-it/1" rel="noopener"><span> Given a linked list of 0s, 1s and 2s, sort it </span></a></li> <li value="18"><a href="https://www.geeksforgeeks.org/problems/delete-without-head-pointer/1" rel="noopener"><span> Delete without head pointer </span></a></li> </ol> <h3><span> Stack and Queue </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/parenthesis-checker/0" rel="noopener"><span> Parenthesis Checker </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/next-larger-element/0" rel="noopener"><span> Next larger element </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/queue-using-two-stacks/1" rel="noopener"><span> Queue using two Stacks </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/stack-using-two-queues/1" rel="noopener"><span> Stack using two queues </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/get-minimum-element-from-stack/1" rel="noopener"><span> Get minimum element from stack </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/lru-cache/1" rel="noopener"><span> LRU Cache </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/circular-tour/1" rel="noopener"><span> Circular tour </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/first-non-repeating-character-in-a-stream/0" rel="noopener"><span> First non-repeating character in a stream </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/rotten-oranges/0" rel="noopener"><span> Rotten Oranges </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/maximum-of-all-subarrays-of-size-k/0" rel="noopener"><span> Maximum of all subarrays of size k </span></a></li> </ol> <h3><span> Tree </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/left-view-of-binary-tree/1" rel="noopener"><span> Print Left View of Binary Tree </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/check-for-bst/1" rel="noopener"><span> Check for BST </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/bottom-view-of-binary-tree/1" rel="noopener"><span> Print Bottom View of Binary Tree </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/print-a-binary-tree-in-vertical-order/1" rel="noopener"><span> Print a Binary Tree in Vertical Order </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/level-order-traversal-in-spiral-form/1" rel="noopener"><span> Level order traversal in spiral form </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/connect-nodes-at-same-level/1" rel="noopener"><span> Connect Nodes at Same Level </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/lowest-common-ancestor-in-a-bst/1" rel="noopener"><span> Lowest Common Ancestor in a BST </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/binary-tree-to-dll/1" rel="noopener"><span> Convert a given Binary Tree to Doubly Linked List </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/determine-if-two-trees-are-identical/1" rel="noopener"><span> Write Code to Determine if Two Trees are Identical or Not </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/symmetric-tree/1" rel="noopener"><span> Given a binary tree, check whether it is a mirror of itself </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/height-of-binary-tree/1" rel="noopener"><span> Height of Binary Tree </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/maximum-path-sum/1" rel="noopener"><span> Maximum Path Sum </span></a></li> <li value="13"><a href="https://www.geeksforgeeks.org/problems/diameter-of-binary-tree/1" rel="noopener"><span> Diameter of a Binary Tree </span></a></li> <li value="14"><a href="https://www.geeksforgeeks.org/problems/count-leaves-in-binary-tree/1" rel="noopener"><span> Number of leaf nodes </span></a></li> <li value="15"><a href="https://www.geeksforgeeks.org/problems/check-for-balanced-tree/1" rel="noopener"><span> Check if given Binary Tree is Height Balanced or Not </span></a></li> <li value="16"><a href="https://www.geeksforgeeks.org/problems/serialize-and-deserialize-a-binary-tree/1" rel="noopener"><span> Serialize and Deserialize a Binary Tree </span></a></li> </ol> <p dir="ltr"><b><strong> Solved the above? </strong></b></p> <p><a href="#More Questions on Trees" rel="noopener noreferrer"><span> Go for some more Questions </span></a></p> <h3><span> Heap </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/find-median-in-a-stream/0" rel="noopener"><span> Find median in a stream </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/heap-sort/1" rel="noopener"><span> Heap Sort </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/operations-on-binary-min-heap/1" rel="noopener"><span> Operations on Binary Min Heap </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/rearrange-characters/0" rel="noopener"><span> Rearrange characters </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/merge-k-sorted-linked-lists/1" rel="noopener"><span> Merge K sorted linked lists </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/kth-largest-element-in-a-stream/0" rel="noopener"><span> Kth largest element in a stream </span></a></li> </ol> <h3><span> Recursion </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/flood-fill-algorithm/0" rel="noopener"><span> Flood fill Algorithm </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/number-of-paths/0" rel="noopener"><span> Number of paths </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/combination-sum-ii-1664263832/1?page=1&sortBy=newest&query=page1sortBynewest" rel="noopener"><span> Combination Sum – Part 2 </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/special-keyboard/0" rel="noopener"><span> Special Keyboard </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/josephus-problem/1" rel="noopener"><span> Josephus problem </span></a></li> </ol> <h3><span> Hashing </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/relative-sorting/0" rel="noopener"><span> Relative Sorting </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/sorting-elements-of-an-array-by-frequency/0" rel="noopener"><span> Sorting Elements of an Array by Frequency </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/largest-subarray-with-0-sum/1" rel="noopener"><span> Largest subarray with 0 sum </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/common-elements/0" target="_blank" rel="noopener"><span> Common elements </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/find-all-four-sum-numbers/0" target="_blank" rel="noopener"><span> Find all four sum numbers </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/swapping-pairs-make-sum-equal/0" rel="noopener"><span> Swapping pairs make sum equal </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/count-distinct-elements-in-every-window/1" rel="noopener"><span> Count distinct elements in every window </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/array-pair-sum-divisibility-problem/0" rel="noopener"><span> Array Pair Sum Divisibility Problem </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/longest-consecutive-subsequence/0" rel="noopener"><span> Longest consecutive subsequence </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/array-subset-of-another-array/0" rel="noopener"><span> Array Subset of another array </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/find-all-pairs-whose-sum-is-x/0" rel="noopener"><span> Find all pairs with a given sum </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/find-first-repeated-character/0" rel="noopener"><span> Find first repeated character </span></a></li> <li value="13"><a href="https://www.geeksforgeeks.org/problems/zero-sum-subarrays/0" rel="noopener"><span> Zero Sum Subarrays </span></a></li> <li value="14"><a href="https://www.geeksforgeeks.org/problems/minimum-indexed-character/0" rel="noopener"><span> Minimum indexed character </span></a></li> <li value="15"><a href="https://www.geeksforgeeks.org/problems/check-if-two-arrays-are-equal-or-not/0" rel="noopener"><span> Check if two arrays are equal or not </span></a></li> <li value="16"><a href="https://www.geeksforgeeks.org/problems/uncommon-characters/0" rel="noopener"><span> Uncommon characters </span></a></li> <li value="17"><a href="https://www.geeksforgeeks.org/problems/smallest-window-in-a-string-containing-all-the-characters-of-another-string/0" rel="noopener"><span> Smallest window in a string containing all the characters of another string </span></a></li> <li value="18"><a href="https://www.geeksforgeeks.org/problems/first-element-to-occur-k-times/0" rel="noopener"><span> First element to occur k times </span></a></li> <li value="19"><a href="https://www.geeksforgeeks.org/problems/check-frequencies/0" rel="noopener"><span> Check if frequencies can be equal </span></a></li> </ol> <h3><span> Graph </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/depth-first-traversal-for-a-graph/1" rel="noopener"><span> Depth First Traversal </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/bfs-traversal-of-graph/1" rel="noopener"><span> Breadth First Traversal </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/detect-cycle-in-an-undirected-graph/1/" target="_blank" rel="noopener"><span> Detect cycle in undirected graph </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/detect-cycle-in-a-directed-graph/1" rel="noopener"><span> Detect cycle in a directed graph </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/topological-sort/1" rel="noopener"><span> Topological sort </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/find-the-number-of-islands/1" rel="noopener"><span> Find the number of islands </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/implementing-dijkstra-set-1-adjacency-matrix/1" rel="noopener"><span> Implementing Dijkstra </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/minimum-swaps/1" rel="noopener"><span> Minimum Swaps </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/strongly-connected-components-kosarajus-algo/1" rel="noopener"><span> Strongly Connected Components </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/shortest-source-to-destination-path/0" rel="noopener"><span> Shortest Source to Destination Path </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/find-whether-path-exist/0" rel="noopener"><span> Find whether path exist </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/minimum-cost-path/0" rel="noopener"><span> Minimum Cost Path </span></a></li> <li value="13"><a href="https://www.geeksforgeeks.org/problems/circle-of-strings/0" rel="noopener"><span> Circle of Strings </span></a></li> <li value="14"><a href="https://www.geeksforgeeks.org/problems/implementing-floyd-warshall/0" rel="noopener"><span> Floyd Warshall </span></a></li> <li value="15"><a href="https://www.geeksforgeeks.org/problems/alien-dictionary/1" rel="noopener"><span> Alien Dictionary </span></a></li> <li value="16"><a href="https://www.geeksforgeeks.org/problems/snake-and-ladder-problem/0" rel="noopener"><span> Snake and Ladder Problem </span></a></li> </ol> <h3><span> Greedy </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/activity-selection/0" rel="noopener"><span> Activity Selection </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/n-meetings-in-one-room/0" rel="noopener"><span> N meetings in one room </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/coin-piles/0" rel="noopener"><span> Coin Piles </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/maximize-toys/0" rel="noopener"><span> Maximize Toys </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/page-faults-in-lru/0" rel="noopener"><span> Page Faults in LRU </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/largest-number-possible/0" rel="noopener"><span> Largest number possible </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/minimize-the-heights/0" rel="noopener"><span> Minimize the heights </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/minimize-the-sum-of-product/0" rel="noopener"><span> Minimize the sum of product </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/huffman-decoding-1/1" rel="noopener"><span> Huffman Decoding </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/minimum-spanning-tree/1" rel="noopener"><span> Minimum Spanning Tree </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/shop-in-candy-store/0" rel="noopener"><span> Shop in Candy Store </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/geek-collects-the-balls/0" rel="noopener"><span> Geek collects the balls </span></a></li> </ol> <h3><span> Dynamic Programming </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/find-optimum-operation/0" rel="noopener"><span> Minimum Operations </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/max-length-chain/1" rel="noopener"><span> Max length chain </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/-minimum-number-of-coins/0" rel="noopener"><span> Minimum number of Coins </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/longest-common-substring/0" rel="noopener"><span> Longest Common Substring </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/longest-increasing-subsequence/0" rel="noopener"><span> Longest Increasing Subsequence </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/longest-common-subsequence/0" rel="noopener"><span> Longest Common Subsequence </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/0-1-knapsack-problem/0" rel="noopener"><span> 0 – 1 Knapsack Problem </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/maximum-sum-increasing-subsequence/0" rel="noopener"><span> Maximum sum increasing subsequence </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/minimum-number-of-jumps/0" rel="noopener"><span> Minimum number of jumps </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/edit-distance/0" rel="noopener"><span> Edit Distance </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/coin-change/0" rel="noopener"><span> Coin Change Problem </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/subset-sum-problem/0" rel="noopener"><span> Subset Sum Problem </span></a></li> <li value="13"><a href="https://www.geeksforgeeks.org/problems/box-stacking/1" rel="noopener"><span> Box Stacking </span></a></li> <li value="14"><a href="https://www.geeksforgeeks.org/problems/cutted-segments/0" rel="noopener"><span> Rod Cutting </span></a></li> <li value="15"><a href="https://www.geeksforgeeks.org/find-the-longest-path-in-a-matrix-with-given-constraints/" rel="noopener"><span> Path in Matrix </span></a></li> <li value="16"><a href="https://www.geeksforgeeks.org/problems/minimum-sum-partition/0" rel="noopener"><span> Minimum sum partition </span></a></li> <li value="17"><a href="https://www.geeksforgeeks.org/problems/count-number-of-hops/0" rel="noopener"><span> Count number of ways to cover a distance </span></a></li> <li value="18"><a href="https://www.geeksforgeeks.org/problems/egg-dropping-puzzle/0" rel="noopener"><span> Egg Dropping Puzzle </span></a></li> <li value="19"><a href="https://www.geeksforgeeks.org/problems/optimal-strategy-for-a-game/0" rel="noopener"><span> Optimal Strategy for a Game </span></a></li> <li value="20"><a href="https://www.geeksforgeeks.org/problems/shortest-common-supersequence/0" rel="noopener"><span> Shortest Common Supersequence </span></a></li> </ol> <h3><span> Divide and Conquer </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/find-the-element-that-appears-once-in-sorted-array/0" rel="noopener"><span> Find the element that appears once in sorted array </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/search-in-a-rotated-array/0" target="_blank" rel="noopener"><span> Search in a Rotated Array </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/binary-search/1" rel="noopener"><span> Binary Search </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/sum-of-middle-elements-of-two-sorted-arrays/0" target="_blank" rel="noopener"><span> Sum of Middle Elements of two sorted arrays </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/quick-sort/1" rel="noopener"><span> Quick Sort </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/merge-sort/1" rel="noopener"><span> Merge Sort </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/k-th-element-of-two-sorted-array/0" rel="noopener"><span> K-th element of two sorted Arrays </span></a></li> </ol> <h3><span> Backtracking </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/n-queen-problem/0" rel="noopener"><span> N-Queen Problem </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/solve-the-sudoku/0" rel="noopener"><span> Solve the Sudoku </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/rat-in-a-maze-problem/1" rel="noopener"><span> Rat in a Maze Problem </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/word-boggle/0" rel="noopener"><span> Word Boggle </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/generate-ip-addresses/1" rel="noopener"><span> Generate IP Addresses </span></a></li> </ol> <h3><span> Bit Magic </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/find-first-set-bit/0" rel="noopener"><span> Find first set bit </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/rightmost-different-bit/0" rel="noopener"><span> Rightmost different bit </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/check-whether-k-th-bit-is-set-or-not/0" rel="noopener"><span> Check whether K-th bit is set or not </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/toggle-bits-given-range/0" rel="noopener"><span> Toggle bits given range </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/set-kth-bit/0" rel="noopener"><span> Set kth bit </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/power-of-2/0" rel="noopener"><span> Power of 2 </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/bit-difference/0" rel="noopener"><span> Bit Difference </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/rotate-bits/0" rel="noopener"><span> Rotate Bits </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/swap-all-odd-and-even-bits/0" rel="noopener"><span> Swap all odd and even bits </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/count-total-set-bits/0" rel="noopener"><span> Count total set bits </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/longest-consecutive-1s/0" rel="noopener"><span> Longest Consecutive 1’s </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/number-is-sparse-or-not/0" rel="noopener"><span> Sparse Number </span></a></li> <li value="13"><a href="https://www.geeksforgeeks.org/problems/alone-in-couple/0" rel="noopener"><span> Alone in a couple </span></a></li> <li value="14"><a href="https://www.geeksforgeeks.org/problems/maximum-subset-xor/1" rel="noopener"><span> Maximum subset XOR </span></a></li> </ol> <h3><span> Some More Questions on Arrays </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/find-missing-and-repeating/0" target="_blank" rel="noopener"><span> Find Missing And Repeating </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/maximum-index/0" target="_blank" rel="noopener"><span> Maximum Index </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/consecutive-1s-not-allowed/0" target="_blank" rel="noopener"><span> Consecutive 1’s not allowed </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/majority-element/0" target="_blank" rel="noopener"><span> Majority Element </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/two-numbers-with-sum-closest-to-zero/0" target="_blank" rel="noopener"><span> Two numbers with sum closest to zero </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/nuts-and-bolts-problem/0" target="_blank" rel="noopener"><span> Nuts and Bolts Problem </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/boolean-matrix-problem/0" target="_blank" rel="noopener"><span> Boolean Matrix Problem </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/smallest-positive-missing-number/0" target="_blank" rel="noopener"><span> Smallest Positive missing number </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/jumping-caterpillars/0" target="_blank" rel="noopener"><span> Jumping Caterpillars </span></a></li> </ol> <h3><span> Some More Questions on Strings </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/most-frequent-word-in-an-array-of-strings/0" target="_blank" rel="noopener"><span> Most frequent word in an array of strings </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/camelcase-pattern-matching/0" target="_blank" rel="noopener"><span> CamelCase Pattern Matching </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/string-ignorance/0" target="_blank" rel="noopener"><span> String Ignorance </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/smallest-window-in-a-string-containing-all-the-characters-of-another-string/0" target="_blank" rel="noopener"><span> Smallest window in a string containing all the characters of another string </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/design-a-tiny-url-or-url-shortener/0" target="_blank" rel="noopener"><span> Design a tiny URL or URL shortener </span></a></li> <li value="6"><a href="https://www.geeksforgeeks.org/problems/permutations-of-a-given-string/0" target="_blank" rel="noopener"><span> Permutations of a given string </span></a></li> <li value="7"><a href="https://www.geeksforgeeks.org/problems/non-repeating-character/0" target="_blank" rel="noopener"><span> Non Repeating Character </span></a></li> <li value="8"><a href="https://www.geeksforgeeks.org/problems/check-if-strings-are-rotations-of-each-other-or-not/0" target="_blank" rel="noopener"><span> Check if strings are rotations of each other or not </span></a></li> <li value="9"><a href="https://www.geeksforgeeks.org/problems/save-ironman/0" target="_blank" rel="noopener"><span> Save Ironman </span></a></li> <li value="10"><a href="https://www.geeksforgeeks.org/problems/repeated-character/0" target="_blank" rel="noopener"><span> Repeated Character </span></a></li> <li value="11"><a href="https://www.geeksforgeeks.org/problems/remove-common-characters-and-concatenate/0" target="_blank" rel="noopener"><span> Remove common characters and concatenate </span></a></li> <li value="12"><a href="https://www.geeksforgeeks.org/problems/geek-and-its-colored-strings/0" target="_blank" rel="noopener"><span> Geek and its Colored Strings </span></a></li> <li value="13"><a href="https://www.geeksforgeeks.org/problems/second-most-repeated-string-in-a-sequence/0" target="_blank" rel="noopener"><span> Second most repeated string in a sequence </span></a></li> </ol> <h3><span> Some more Questions on Trees </span></h3> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/problems/mirror-tree/1" target="_blank" rel="noopener"><span> Mirror Tree </span></a></li> <li value="2"><a href="https://www.geeksforgeeks.org/problems/longest-consecutive-sequence-in-binary-tree/1" target="_blank" rel="noopener"><span> Longest consecutive sequence in Binary tree </span></a></li> <li value="3"><a href="https://www.geeksforgeeks.org/problems/bottom-view-of-binary-tree/1" target="_blank" rel="noopener"><span> Bottom View of Binary Tree </span></a></li> <li value="4"><a href="https://www.geeksforgeeks.org/problems/lowest-common-ancestor-in-a-binary-tree/1" target="_blank" rel="noopener"><span> Lowest Common Ancestor in a Binary Tree </span></a></li> <li value="5"><a href="https://www.geeksforgeeks.org/problems/binary-tree-to-dll/1" target="_blank" rel="noopener"><span> Binary to DLL </span></a></li> </ol> <p dir="ltr"><b><strong> Important Links : </strong></b></p> <ol> <li value="1"><a href="https://www.geeksforgeeks.org/coding-questions-for-interview-and-competitive-programming/" rel="noopener"><span> Difficulty-wise ordered Coding questions for Interview and Competitive Programming </span></a></li> <li value="2"><span> Aptitude questions asked in round 1 : </span><a href="https://www.geeksforgeeks.org/placements-gq/" rel="noopener"><span> Placements Course </span></a><span> designed for this purpose. </span></li> <li value="3"><span> MCQs asked from different computer science subjects : </span><a href="https://www.geeksforgeeks.org/quiz-corner-gq/" rel="noopener"><span> Subject-Wise Quizzes </span></a></li> <li value="4"><span> Interview theory and coding questions of all companies : </span><a href="https://practice.geeksforgeeks.org/company-tags" rel="noopener"><span> Company wise all practice questions </span></a><span> . </span></li> <li value="5"><span> Interview experiences of all companies : </span><a href="https://www.geeksforgeeks.org/company-interview-corner/" rel="noopener"><span> Interview corner</span></a><span>. </span></li> </ol> <h3><a href="https://www.geeksforgeeks.org/courses" target="_blank" rel="noopener"><b><strong> GeeksforGeeks Courses: </strong></b></a></h3> <blockquote> <h3><span> Language Foundation Courses [ </span><a href="https://gfgcdn.com/tu/RI7/" target="_blank" rel=""><span> C Programming </span></a><span> / </span><a href="https://gfgcdn.com/tu/RI6/" target="_blank" rel=""><span> C++ </span></a><span> / </span><a href="https://gfgcdn.com/tu/RI8/" target="_blank" rel=""><span> JAVA </span></a><span> / </span><a href="https://gfgcdn.com/tu/RI9/" target="_blank" rel=""><span> Python </span></a><span> ] </span></h3> <p dir="ltr"><span> Learn any programming language from scratch and understand all its fundamentals concepts for a strong programming foundation in the easiest possible manner with help of GeeksforGeeks Language Foundation Courses – </span><a href="https://gfgcdn.com/tu/RI7/" target="_blank" rel=""><span> C Programming </span></a><span> | </span><a href="https://gfgcdn.com/tu/RI8/" target="_blank" rel=""><span> Java Foundation </span></a><span> | </span><a href="https://gfgcdn.com/tu/RI9/" target="_blank" rel=""><span> Python Foundation </span></a><span> | </span><a href="https://gfgcdn.com/tu/RI6/" target="_blank" rel=""><span> C++ Foundation </span></a></p> <h3><a href="https://gfgcdn.com/tu/RJ0/" target="_blank" rel="noopener noreferrer"><b><strong> DSA Self Paced </strong></b></a></h3> <p dir="ltr"><span> Start learning Data Structures and Algorithms to prepare for the interviews of top IT giants like Microsoft, Amazon, Adobe, etc. with </span><a href="https://gfgcdn.com/tu/RJ0/" target="_blank" rel=""><i><em class="GFGEditorTheme__textItalic"> DSA Self-Paced Course </em></i></a><span> where you will get to learn and master DSA from basic to advanced level and that too at your own pace and convenience. </span></p> </blockquote> <div hideAd="MID"></div><br/><div id="AP_G4GR_6"></div> <div class='article_bottom_text'></div><br> <div id="video-tab-content" class="video-tab-content"> <div style="text-align: center; margin: 20px 0px;" id="GFG_AD_InContent_Desktop_728x280"></div> </div> <div class="article-meta-author-details"> <div class="article-meta-author-details-block"> <div class="article-meta-author-details-profile-display"> <div class="article-meta-author-details-profile-display-icon"> <div class="image-wrap"> <img src= 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align-items: center; border-radius: 0px 10px 10px 0px; height: 80px; width: calc(100% - 80px); } .popup-main .exp-card1 { justify-content: flex-start; background: var(--write-experience-card-1); } .popup-main .exp-card2 { justify-content: flex-start; background: var(--write-experience-card-2); } .popup-main .exp-card3 { justify-content: flex-start; background: var(--write-experience-card-3); } .popup-main .exp-card4 { justify-content: flex-start; background: var(--write-experience-card-4); } .popup-main .exp-card5 { justify-content: flex-start; background: var(--write-experience-card-5); } .popup-main .exp-card6 { justify-content: flex-start; background: var(--write-experience-card-6); } .popup-main span { font-family: var(--font-primary); font-size: 14px; font-style: normal; font-weight: 500; line-height: normal; padding-left: 5px; padding-right: 5px; } #popup { display: none; background-color: var(--write-modal-background); padding: 20px; text-align: center; position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 1026; width: min(650px, calc(100% - 20px)); } .link-container-write{ display:flex; flex-direction:column; } .link-container-write > a { margin:7px 0px; } .phrase__container{ color:var(--color-gfg); border-radius: 6px; width: 100%; background-color:var(--write-redirect-container); padding: 15px; text-align: justify; font-size:14px; } .phrase__container:hover { color:var(--color-gfg) !important; background-color:var(--write-redirect-container-hover); } </style> <div class="popup-container"> <div id="popup" accesskey="" class="popup-main"> <div class="popup-heading"> <h2>What kind of Experience do you want to share?</h2> <div class="close-icon share-experience-modal-close"></div> </div>  <div class="experience-card"> <a class="exp-card5" href= "https://write.geeksforgeeks.org/posts-new?cid=e8fc46fe-75e7-4a4b-be3c-0c862d655ed0" target="_blank"> <div class="icon5"> <div class="icon5-image"></div> </div> <div class="exp-card5-text"> <span style="color: #000;">Interview Experiences</span> </div> </a> <a class="exp-card1" href="https://write.geeksforgeeks.org/posts-new?cid=82536bdb-84e6-4661-87c3-e77c3ac04ede" target="_blank"> <div class="icon1"> <div class="icon1-image"></div> </div> <div class="exp-card1-text"> <span style="color: #000;">Admission Experiences</span> </div> </a> <a class="exp-card6" href= "https://write.geeksforgeeks.org/posts-new?cid=5219b0b2-7671-40a0-9bda-503e28a61c31" target="_blank"> <div class="icon6"> <div class="icon6-image"></div> </div> <div class="exp-card6-text"> <span style="color: #000;">Career Journeys</span> </div> </a> <a class="exp-card2" href="https://write.geeksforgeeks.org/posts-new?cid=22ae3354-15b6-4dd4-a5b4-5c7a105b8a8f" target="_blank"> <div class="icon2"> <div class="icon2-image"></div> </div> <div class="exp-card2-text"> <span style="color: #000;">Work Experiences</span> </div> </a> <a class="exp-card3" href= "https://write.geeksforgeeks.org/posts-new?cid=c5e1ac90-9490-440a-a5fa-6180c87ab8ae" target="_blank"> <div class="icon3"> <div class="icon3-image"></div> </div> <div class="exp-card3-text"> <span style="color: #000;">Campus Experiences</span> </div> </a> <a class="exp-card4" href= "https://write.geeksforgeeks.org/posts-new?cid=5ebb8fe9-b980-4891-af07-f2d62a9735f2" target="_blank"> <div class="icon4"> <div class="icon4-image"></div> </div> <div class="exp-card4-text"> <span style="color: #000;">Competitive Exam Experiences</span> </div> </a> </div>  </div> <div id="overlay" onclick="toggleExperiencePopup()" style="display: block;min-height: 100vh;min-width: 100vw;position: fixed;top: 0;bottom: 0;right: 0;left: 0;display: none;justify-content: center;align-items: center;background: rgba(0,0,0,.702);z-index: 1025 !important;backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);word-break: keep-all;"></div> </div> <script> $('.share-experience-modal').click(function(e){ e.preventDefault(); var link = $(this).attr('href'); toggleExperiencePopup(link); }); function toggleExperiencePopup(link) { var popup = document.getElementById("popup"); var overlay = document.getElementById("overlay"); if (window.innerWidth < 992) { window.location.href = link; } else { popup.style.display = (popup.style.display === "block") ? "none" : "block"; overlay.style.display = (overlay.style.display === "block") ? "none" : "block"; } } $('.share-experience-modal-close').click(function(e){ var popup = document.getElementById("popup"); popup.style.display = 'none'; var overlay = document.getElementById("overlay"); overlay.style.display = 'none'; }); </script> </div><script type="text/javascript"> $(window).on('load', function() { (function(c,l,a,r,i,t,y){ c[a]=c[a]||function(){(c[a].q=c[a].q||[]).push(arguments)}; t=l.createElement(r);t.async=1;t.src="https://www.clarity.ms/tag/"+i; y=l.getElementsByTagName(r)[0];y.parentNode.insertBefore(t,y); })(window, document, "clarity", "script", "ayc7ypwwuk"); }); </script>  </body> </html>

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