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<section id="questions">
<div>
<p class="questions-headings">Arrays</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/write-a-program-to-reverse-an-array-or-string/">Reverse the array</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/maximum-and-minimum-in-an-array/" target="_blank">Find the maximum and minimum element in an array</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/kth-smallest-element5635/1" target="_blank">Find the "Kth" max and min element of an array </a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/sort-an-array-of-0s-1s-and-2s4231/1" target="_blank">Given an array which consists of only 0, 1 and 2. Sort the array without using any sorting
algo</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/move-negative-numbers-beginning-positive-end-constant-extra-space/" target="_blank">Move all the negative elements to one side of the array </a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/union-of-two-arrays3538/1" target="_blank">Find the Union and Intersection of the two sorted arrays.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/cyclically-rotate-an-array-by-one2614/1" target="_blank">Write a program to cyclically rotate an array by one.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/kadanes-algorithm-1587115620/1" target="_blank">Find Largest sum contiguous Subarray [V. IMP]</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/minimize-the-heights3351/1" target="_blank">Minimise the maximum difference between heights [V.IMP]</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/minimum-number-of-jumps-1587115620/1" target="_blank">Minimum no. of Jumps to reach end of an array</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/find-the-duplicate-number/" target="_blank">Find duplicate in an array of N+1 Integers</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/merge-two-sorted-arrays5135/1" target="_blank">Merge 2 sorted arrays without using Extra space.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/kadanes-algorithm-1587115620/1" target="_blank">Kadane's Algo [V.V.V.V.V IMP]
</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/merge-intervals/" target="_blank">Merge Intervals
</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/next-permutation/" target="_blank">Next Permutation
</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/inversion-of-array-1587115620/1" target="_blank">Count Inversion
</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/best-time-to-buy-and-sell-stock/" target="_blank">Best time to buy and Sell stock
</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/count-pairs-with-given-sum5022/1" target="_blank">Find all pairs on integer array whose sum is equal to given number
</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/median-of-two-sorted-arrays-of-different-sizes/" target="_blank">Median of 2 sorted arrays of different size</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/find-the-median0527/1" target="_blank">Median of 2 sorted arrays of equal size</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/common-elements1132/1" target="_blank">Find common elements In 3 sorted arrays</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/rearrange-array-alternating-positive-negative-items-o1-extra-space/" target="_blank">Rearrange the array in alternating positive and negative items with O(1)
extra
space</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/subarray-with-0-sum-1587115621/1" target="_blank">Find if there is any subarray with sum equal to 0</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/factorials-of-large-numbers2508/1" target="_blank">Find factorial of a large number</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/maximum-product-subarray3604/1" target="_blank">find maximum product subarray </a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/longest-consecutive-subsequence2449/1" target="_blank">Find longest coinsecutive subsequence</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/given-an-array-of-of-size-n-finds-all-the-elements-that-appear-more-than-nk-times/" target="_blank">Given an array of size n and a number k, fin all elements
that
appear more than "
n/k " times.</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/maximum-profit-by-buying-and-selling-a-share-at-most-twice/" target="_blank">Maximum profit by buying and selling a share atmost twice</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/array-subset-of-another-array2317/1" target="_blank">Find whether an array is a subset of another array</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/triplet-sum-in-array-1587115621/1" target="_blank">Find the triplet that sum to a given value</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/trapping-rain-water-1587115621/1" target="_blank">Trapping Rain water problem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/chocolate-distribution-problem3825/1" target="_blank">Chocolate Distribution problem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/smallest-subarray-with-sum-greater-than-x5651/1" target="_blank">Smallest Subarray with sum greater than a given value</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/three-way-partitioning/1" target="_blank">Three way partitioning of an array around a given value</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/minimum-swaps-required-to-bring-all-elements-less-than-or-equal-to-k-together4847/1" target="_blank">Minimum swaps required bring elements less
equal
K together</a>
</li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/palindromic-array-1587115620/1" target="_blank">Minimum no. of operations required to make an array palindrome</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Matrix</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/spirally-traversing-a-matrix-1587115621/1" target="_blank">Spiral traversal on a Matrix</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/search-a-2d-matrix/" target="_blank">Search an element in a matriix</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/median-in-a-row-wise-sorted-matrix1527/1" target="_blank">Find median in a row wise sorted matrix</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/row-with-max-1s0023/1" target="_blank">Find row with maximum no. of 1's</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/sorted-matrix2333/1" target="_blank">Print elements in sorted order using row-column wise sorted matrix</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/max-rectangle/1" target="_blank">Maximum size rectangle</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/find-a-specific-pair-in-matrix/" target="_blank">Find a specific pair in matrix</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/rotate-a-matrix-by-90-degree-in-clockwise-direction-without-using-any-extra-space/" target="_blank">Rotate matrix by 90 degrees</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/kth-element-in-matrix/1" target="_blank">Kth smallest element in a row-cpumn wise sorted matrix</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/common-elements-in-all-rows-of-a-given-matrix/" target="_blank">Common elements in all rows of a given matrix</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">String</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/reverse-string/" target="_blank">Reverse a String</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/palindrome-string0817/1" target="_blank">Check whether a String is Palindrome or not</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/print-all-the-duplicates-in-the-input-string/" target="_blank">Find Duplicate characters in a string</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/a-program-to-check-if-strings-are-rotations-of-each-other/" target="_blank">Write a Code to check whether one string is a rotation of another</a></li>
<li class="list"><a class="question-links" href="https://www.programiz.com/java-programming/examples/check-valid-shuffle-of-strings" target="_blank">Write a Program to check whether a string is a valid shuffle of two strings or not</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/count-and-say/" target="_blank">Count and Say problem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/longest-palindrome-in-a-string3411/1" target="_blank">Write a program to find the longest Palindrome in a string.[ Longest palindromic
Substring]</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/longest-repeating-subsequence2004/1" target="_blank">Find Longest Recurring Subsequence in String</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/print-subsequences-string/" target="_blank">Print all Subsequences of a string.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/permutations-of-a-given-string2041/1" target="_blank">Print all the permutations of the given string</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/split-the-binary-string-into-substrings-with-equal-number-of-0s-and-1s/" target="_blank">Split the Binary string into two substring with equal 0’s and 1’s</a>
</li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/word-wrap1646/1" target="_blank">Word Wrap Problem [VERY IMP].</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/edit-distance3702/1" target="_blank">EDIT Distance [Very Imp]</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/next-permutation5226/1" target="_blank">Find next greater number with same set of digits. [Very Very IMP]</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/parenthesis-checker2744/1" target="_blank">Balanced Parenthesis problem.[Imp]</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/word-break1352/1" target="_blank">Word break Problem[ Very Imp]</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/rabin-karp-algorithm-for-pattern-searching/" target="_blank">Rabin Karp Algo</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/longest-prefix-suffix2527/1" target="_blank">KMP Algo</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/convert-sentence-equivalent-mobile-numeric-keypad-sequence/" target="_blank">Convert a Sentence into its equivalent mobile numeric keypad sequence.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/count-the-reversals0401/1" target="_blank">Minimum number of bracket reversals needed to make an expression balanced.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/count-palindromic-subsequences/1" target="_blank">Count All Palindromic Subsequence in a given String.</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/find-count-number-given-string-present-2d-character-array/" target="_blank">Count of number of given string in 2D character array</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/find-the-string-in-grid0111/1" target="_blank">Search a Word in a 2D Grid of characters.</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/boyer-moore-algorithm-for-pattern-searching/" target="_blank">Boyer Moore Algorithm for Pattern Searching.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/roman-number-to-integer3201/1" target="_blank">Converting Roman Numerals to Decimal</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/longest-common-prefix/" target="_blank">Longest Common Prefix</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Searching & Sorting</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/first-and-last-occurrences-of-x3116/1" target="_blank">Find first and last positions of an element in a sorted array</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/value-equal-to-index-value1330/1" target="_blank">Find a Fixed Point (Value equal to index) in a given array</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/search-in-rotated-sorted-array/" target="_blank">Search in a rotated sorted array</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/count-squares3649/1" target="_blank">square root of an integer</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/middle-of-three2926/1" target="_blank">Maximum and minimum of an array using minimum number of comparisons</a></li>
<li class="list"><a class="question-links"
href="https://www.geeksforgeeks.org/optimum-location-point-minimize-total-distance/#:~:text=We%20need%20to%20find%20a,set%20of%20points%20is%20minimum.&text=In%20above%20figure%20optimum%20location,is%20minimum%20obtainable%20total%20distance."
target="_blank">Optimum location of point to minimize total distance</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/find-missing-and-repeating2512/1" target="_blank">Find the repeating and the missing</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/majority-element-1587115620/1" target="_blank">find majority element</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/searching-array-adjacent-differ-k/" target="_blank">Searching in an array where adjacent differ by at most k</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/find-pair-given-difference1559/1" target="_blank">find a pair with a given difference</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/find-all-four-sum-numbers1732/1" target="_blank">find four elements that sum to a given value</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/stickler-theif-1587115621/1" target="_blank">maximum sum such that no 2 elements are adjacent</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/count-triplets-with-sum-smaller-than-x5549/1" target="_blank">Count triplet with sum smaller than a given value</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/merge-two-sorted-arrays5135/1" target="_blank">merge 2 sorted arrays</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/zero-sum-subarrays1825/1" target="_blank">print all subarrays with 0 sum</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/product-array-puzzle4525/1" target="_blank">Product array Puzzle</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/sort-by-set-bit-count1153/1" target="_blank">Sort array according to count of set bits</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/minimum-swaps/1" target="_blank">minimum no. of swaps required to sort the array</a></li>
<li class="list"><a class="question-links" href="https://www.hackerearth.com/practice/algorithms/searching/binary-search/practice-problems/algorithm/bishu-and-soldiers/" target="_blank">Bishu and Soldiers</a></li>
<li class="list"><a class="question-links" href="https://www.hackerearth.com/practice/algorithms/searching/binary-search/practice-problems/algorithm/rasta-and-kheshtak/" target="_blank">Rasta and Kheshtak</a></li>
<li class="list"><a class="question-links" href="https://www.hackerearth.com/practice/algorithms/searching/binary-search/practice-problems/algorithm/kth-smallest-number-again-2/" target="_blank">Kth smallest number again</a></li>
<li class="list"><a class="question-links" href="http://theoryofprogramming.com/2017/12/16/find-pivot-element-sorted-rotated-array/" target="_blank">Find pivot element in a sorted array</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/k-th-element-of-two-sorted-array1317/1" target="_blank">K-th Element of Two Sorted Arrays</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Binary Tress</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/level-order-traversal/1" target="_blank">level order traversal</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/reverse-level-order-traversal/1" target="_blank">Reverse Level Order traversal</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/height-of-binary-tree/1" target="_blank">Height of a tree</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/diameter-of-binary-tree/1" target="_blank">Diameter of a tree</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/create-a-mirror-tree-from-the-given-binary-tree/" target="_blank">Mirror of a tree</a></li>
<li class="list"><a class="question-links" href="https://www.techiedelight.com/inorder-tree-traversal-iterative-recursive/" target="_blank">Inorder Traversal of a tree both using recursion and Iteration</a></li>
<li class="list"><a class="question-links" href="https://www.techiedelight.com/preorder-tree-traversal-iterative-recursive/" target="_blank">Preorder Traversal of a tree both using recursion and Iteration</a></li>
<li class="list"><a class="question-links" href="https://www.techiedelight.com/postorder-tree-traversal-iterative-recursive/" target="_blank">Postorder Traversal of a tree both using recursion and Iteration</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/left-view-of-binary-tree/1" target="_blank">Left View of a tree</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/right-view-of-binary-tree/1" target="_blank">Right View of Tree</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/top-view-of-binary-tree/1" target="_blank">Top View of a tree</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/bottom-view-of-binary-tree/1" target="_blank">Bottom View of a tree</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/zigzag-tree-traversal/1" target="_blank">Zig-Zag traversal of a binary tree</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/check-for-balanced-tree/1" target="_blank">Check if a tree is balanced or not</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/diagonal-traversal-of-binary-tree/" target="_blank">Diagnol Traversal of a Binary tree</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/boundary-traversal-of-binary-tree/1" target="_blank">Boundary traversal of a Binary tree</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/construct-binary-tree-string-bracket-representation/" target="_blank">Construct Binary Tree from String with Bracket Representation</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/binary-tree-to-dll/1" target="_blank">Convert Binary tree into Doubly Linked List</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/transform-to-sum-tree/1" target="_blank">Convert Binary tree into Sum tree</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/construct-tree-1/1" target="_blank">Construct Binary tree from Inorder and preorder traversal</a></li>
<li class="list"><a class="question-links"
href="https://www.geeksforgeeks.org/minimum-swap-required-convert-binary-tree-binary-search-tree/#:~:text=Given%20the%20array%20representation%20of,it%20into%20Binary%20Search%20Tree.&text=Swap%201%3A%20Swap%20node%208,node%209%20with%20node%2010."
target="_blank">Find minimum swaps required to convert a Binary tree into BST</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/sum-tree/1" target="_blank">Check if Binary tree is Sum tree or not</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Binary Search Trees</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/binary-search-tree-set-1-search-and-insertion/" target="_blank">Fina a value in a BST</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/delete-node-in-a-bst/" target="_blank">Deletion of a node in a BST</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/minimum-element-in-bst/1" target="_blank">Find min and max value in a BST</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/predecessor-and-successor/1" target="_blank">Find inorder successor and inorder predecessor in a BST</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/check-for-bst/1" target="_blank">Check if a tree is a BST or not </a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/populate-inorder-successor-for-all-nodes/1" target="_blank">Populate Inorder successor of all nodes</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/lowest-common-ancestor-in-a-bst/1" target="_blank">Find LCA of 2 nodes in a BST</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/construct-bst-from-given-preorder-traversa/" target="_blank">Construct BST from preorder traversal</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/binary-tree-to-bst/1/" target="_blank">Convert Binary tree into BST</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/convert-normal-bst-balanced-bst/" target="_blank">Convert a normal BST into a Balanced BST</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/merge-two-balanced-binary-search-trees/" target="_blank">Merge two BST [ V.V.V>IMP ]</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/kth-largest-element-in-bst/1" target="_blank">Find Kth largest element in a BST</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/find-k-th-smallest-element-in-bst/1" target="_blank">Find Kth smallest element in a BST</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/brothers-from-different-root/1" target="_blank">Count pairs from 2 BST whose sum is equal to given value "X"</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Greedy</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/n-meetings-in-one-room-1587115620/1" target="_blank">Activity Selection Problem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/job-sequencing-problem-1587115620/1" target="_blank">Job SequencingProblem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/huffman-encoding3345/1" target="_blank">Huffman Coding</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/water-connection-problem5822/1" target="_blank">Water Connection Problem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/fractional-knapsack-1587115620/1" target="_blank">Fractional Knapsack Problem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/choose-and-swap0531/1" target="_blank">Greedy Algorithm to find Minimum number of Coins</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/maximum-trains-stoppage-can-provided/" target="_blank">Maximum trains for which stoppage can be provided</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/minimum-platforms-1587115620/1" target="_blank">Minimum Platforms Problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/buy-maximum-stocks-stocks-can-bought-th-day/" target="_blank">Buy Maximum Stocks if i stocks can be bought on i-th day</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/shop-in-candy-store1145/1" target="_blank">Find the minimum and maximum amount to buy all N candies</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/minimize-cash-flow-among-given-set-friends-borrowed-money/" target="_blank">Minimize Cash Flow among a given set of friends who have borrowed money from each
other</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/minimum-cost-cut-board-squares/" target="_blank">Minimum Cost to cut a board into squares</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/survival/" target="_blank">Check if it is possible to survive on Island</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/find-maximum-meetings-in-one-room/" target="_blank">Find maximum meetings in one room</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Backtracking</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/rat-in-a-maze-problem/1" target="_blank">Rat in a maze Problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/printing-solutions-n-queen-problem/" target="_blank">Printing all solutions in N-Queen Problem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/word-break-part-23249/1" target="_blank">Word Break Problem using Backtracking</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/remove-invalid-parentheses/" target="_blank">Remove Invalid Parentheses</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/solve-the-sudoku-1587115621/1" target="_blank">Sudoku Solver</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/m-coloring-problem-1587115620/1" target="_blank">m Coloring Problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/given-a-string-print-all-possible-palindromic-partition/" target="_blank">Print all palindromic partitions of a string</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/subset-sum-problem2014/1" target="_blank">Subset Sum Problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/the-knights-tour-problem-backtracking-1/" target="_blank">The Knight’s tour problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/tug-of-war/" target="_blank">Tug of War</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/find-shortest-safe-route-in-a-path-with-landmines/" target="_blank">Find shortest safe route in a path with landmines</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/combination-sum-1587115620/1" target="_blank">Combinational Sum</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/largest-number-in-k-swaps-1587115620/1" target="_blank">Find Maximum number possible by doing at-most K swaps</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/permutations-of-a-given-string2041/1" target="_blank">Print all permutations of a string </a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/find-if-there-is-a-path-of-more-than-k-length-from-a-source/" target="_blank">Find if there is a path of more than k length from a source</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Stacks & Queues</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://www.tutorialspoint.com/javaexamples/data_stack.htm" target="_blank"> Implement Stack from Scratch</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/queue-set-1introduction-and-array-implementation/" target="_blank"> Implement Queue from Scratch</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/implement-two-stacks-in-an-array/1" target="_blank">Implement 2 stack in an array</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/design-a-stack-with-find-middle-operation/" target="_blank">find the middle element of a stack</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/efficiently-implement-k-stacks-single-array/" target="_blank">Implement "N" stacks in an Array</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/parenthesis-checker2744/1" target="_blank">Check the expression has valid or Balanced parenthesis or not.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/reverse-a-string-using-stack/1" target="_blank">Reverse a String using Stack</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/special-stack/1" target="_blank">Design a Stack that supports getMin() in O(1) time and O(1) extra space.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/next-larger-element-1587115620/1" target="_blank">Find the next Greater element</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/the-celebrity-problem/1" target="_blank">The celebrity Problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/arithmetic-expression-evalution/#:~:text=The%20stack%20organization%20is%20very,i.e.%2C%20A%20%2B%20B)." target="_blank">Arithmetic Expression evaluation</a>
</li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/evaluation-of-postfix-expression1735/1" target="_blank">Evaluation of Postfix expression</a></li>
<li class="list"><a class="question-links" href="https://stackoverflow.com/questions/45130465/inserting-at-the-end-of-stack" target="_blank">Implement a method to insert an element at its bottom without using any other data structure.</a>
</li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/reverse-a-stack-using-recursion/" target="_blank">Reverse a stack using recursion</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/sort-a-stack/1" target="_blank">Sort a Stack using recursion</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/contest/microsoft-online-coding-assesment-8" target="_blank">Merge Overlapping Intervals</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/maximum-rectangular-area-in-a-histogram-1587115620/1" target="_blank">Largest rectangular Area in Histogram</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/valid-substring0624/1" target="_blank">Length of the Longest Valid Substring</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/expression-contains-redundant-bracket-not/" target="_blank">Expression contains redundant bracket or not</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/stack-using-two-queues/1" target="_blank">Implement Stack using Queue</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Heap</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/building-heap-from-array/" target="_blank">Implement a Maxheap/MinHeap using arrays and recursion.</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/heap-sort/" target="_blank">Sort an Array using heap. (HeapSort)</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/sliding-window-maximum-maximum-of-all-subarrays-of-size-k/" target="_blank">Maximum of all subarrays of size k.</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/k-largest-elements4206/1" target="_blank">“k” largest element in an array</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/kth-smallestlargest-element-unsorted-array/" target="_blank">Kth smallest and largest element in an unsorted array</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/merge-k-sorted-arrays/1" target="_blank">Merge “K” sorted arrays. [ IMP ]</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/merge-two-binary-max-heap0144/1" target="_blank">Merge 2 Binary Max Heaps</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/k-th-largest-sum-contiguous-subarray/" target="_blank">Kth largest sum continuous subarrays</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/reorganize-string/" target="_blank">Leetcode- reorganize strings</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/merge-k-sorted-linked-lists/1" target="_blank">Merge “K” Sorted Linked Lists [V.IMP]</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Graphs</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://onedrive.live.com/?authkey=%21AJrTq%5FU8BPKIWDk&cid=842AECBB531CCEA4&id=842AECBB531CCEA4%211179&parId=842AECBB531CCEA4%211164&o=OneUp" target="_blank">Create a Graph, print it</a>
</li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/bfs-traversal-of-graph/1" target="_blank">Implement BFS algorithm </a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/depth-first-search-or-dfs-for-a-graph/" target="_blank">Implement DFS Algo </a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/detect-cycle-in-a-graph/" target="_blank">Detect Cycle in Directed Graph using BFS/DFS Algo </a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/detect-cycle-in-an-undirected-graph/1" target="_blank">Detect Cycle in UnDirected Graph using BFS/DFS Algo </a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/rat-in-a-maze-problem/1" target="_blank">Search in a Maze</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/steps-by-knight5927/1" target="_blank">Minimum Step by Knight</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/flood-fill/" target="_blank">flood fill algo</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/clone-graph/" target="_blank">Clone a graph</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/number-of-operations-to-make-network-connected/" target="_blank">Making wired Connections</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/word-ladder/" target="_blank">word Ladder </a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/dijkstras-shortest-path-algorithm-greedy-algo-7/" target="_blank">Dijkstra algo</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/topological-sort/1" target="_blank">Implement Topological Sort </a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/minimum-time-taken-by-each-job-to-be-completed-given-by-a-directed-acyclic-graph/" target="_blank">Minimum time taken by each job to be completed given by a
Directed Acyclic Graph</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/find-whether-it-is-possible-to-finish-all-tasks-or-not-from-given-dependencies/" target="_blank">Find whether it is possible to finish all tasks or not from
given dependencies</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/find-the-number-of-islands/1" target="_blank">Find the no. of Isalnds</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/alien-dictionary/1" target="_blank">Given a sorted Dictionary of an Alien Language, find order of characters</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/kruskals-minimum-spanning-tree-algorithm-greedy-algo-2/" target="_blank">Implement Kruksal’sAlgorithm</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/prims-minimum-spanning-tree-mst-greedy-algo-5/" target="_blank">Implement Prim’s Algorithm</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/total-number-spanning-trees-graph/" target="_blank">Total no. of Spanning tree in a graph</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/negative-weight-cycle3504/1" target="_blank">Implement Bellman Ford Algorithm</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/implementing-floyd-warshall2042/1" target="_blank">Implement Floyd warshallAlgorithm</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/travelling-salesman-problem-set-1/" target="_blank">Travelling Salesman Problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/graph-coloring-applications/#:~:text=Graph%20coloring%20problem%20is%20to,are%20colored%20using%20same%20color." target="_blank">Graph ColouringProblem</a></li>
<li class="list"><a class="question-links" href="https://leetcode.com/problems/snakes-and-ladders/" target="_blank">Snake and Ladders Problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/bridge-in-a-graph/" target="_blank">Find bridge in a graph</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/strongly-connected-components-kosarajus-algo/1" target="_blank">Count Strongly connected Components(Kosaraju Algo)</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/bipartite-graph/" target="_blank">Check whether a graph is Bipartite or Not</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/detect-negative-cycle-graph-bellman-ford/" target="_blank">Detect Negative cycle in a graph</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/find-longest-path-directed-acyclic-graph/" target="_blank">Longest path in a Directed Acyclic Graph</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Trie</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/trie-insert-and-search/" target="_blank">Construct a trie from scratch</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/find-all-shortest-unique-prefixes-to-represent-each-word-in-a-given-list/" target="_blank">Find shortest unique prefix for every word in a given list</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/word-break-problem-trie-solution/" target="_blank">Word Break Problem | (Trie solution)</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/print-anagrams-together/1" target="_blank">Given a sequence of words, print all anagrams together</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/phone-directory4628/1" target="_blank">Implement a Phone Directory</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/unique-rows-in-boolean-matrix/1" target="_blank">Print unique rows in a given boolean matrix</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Dynamic Programming</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/coin-change2448/1" target="_blank">Coin ChangeProblem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/0-1-knapsack-problem0945/1" target="_blank">Knapsack Problem </a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/ncr1019/1" target="_blank">Binomial CoefficientProblem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/permutation-coefficient/" target="_blank">Permutation CoefficientProblem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/program-nth-catalan-number/" target="_blank">Program for nth Catalan Number</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/matrix-chain-multiplication-dp-8/" target="_blank">Matrix Chain Multiplication </a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/edit-distance3702/1" target="_blank">Edit Distance</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/subset-sum-problem2014/1" target="_blank">Subset Sum Problem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/friends-pairing-problem5425/1" target="_blank">Friends Pairing Problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/gold-mine-problem/" target="_blank">Gold Mine Problem</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/assembly-line-scheduling-dp-34/" target="_blank">Assembly Line SchedulingProblem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/painting-the-fence3727/1" target="_blank">Painting the Fenceproblem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/cutted-segments1642/1" target="_blank">Maximize The Cut Segments</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/longest-common-subsequence-1587115620/1" target="_blank">Longest Common Subsequence</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/longest-repeating-subsequence2004/1" target="_blank">Longest Repeated Subsequence</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/longest-increasing-subsequence-1587115620/1" target="_blank">Longest Increasing Subsequence</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/space-optimized-solution-lcs/" target="_blank">Space Optimized Solution of LCS</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/lcs-of-three-strings0028/1" target="_blank">LCS (Longest Common Subsequence) of three strings</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/maximum-sum-increasing-subsequence4749/1" target="_blank">Maximum Sum Increasing Subsequence</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/count-subsequences-product-less-k/" target="_blank">Count all subsequences having product less than K</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/longest-subsequence-such-that-difference-between-adjacents-is-one4724/1" target="_blank">Longest subsequence such that difference between adjacent
is one</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/maximum-subsequence-sum-such-that-no-three-are-consecutive/" target="_blank">Maximum subsequence sum such that no three are consecutive</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/egg-dropping-puzzle-1587115620/1" target="_blank">Egg Dropping Problem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/max-length-chain/1" target="_blank">Maximum Length Chain of Pairs</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/largest-square-formed-in-a-matrix0806/1" target="_blank">Maximum size square sub-matrix with all 1s</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/pairs-with-specific-difference1533/1" target="_blank">Maximum sum of pairs with specific difference</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/path-in-matrix3805/1" target="_blank">Min Cost PathProblem</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/maximum-difference-of-zeros-and-ones-in-binary-string4111/1" target="_blank">Maximum difference of zeros and ones in binary string</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/minimum-number-of-jumps-1587115620/1" target="_blank">Minimum number of jumps to reach end</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/minimum-cost-to-fill-given-weight-in-a-bag1956/1" target="_blank">Minimum cost to fill given weight in a bag</a></li>
</ul>
</div>
</div>
<div>
<p class="questions-headings">Bit Manipulation</p>
<div class="questions">
<ul>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/set-bits0143/1" target="_blank">Count set bits in an integer</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/finding-the-numbers0215/1" target="_blank">Find the two non-repeating elements in an array of repeating elements</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/bit-difference-1587115620/1" target="_blank">Count number of bits to be flipped to convert A to B</a></li>
<li class="list"><a class="question-links" href="https://www.geeksforgeeks.org/divide-two-integers-without-using-multiplication-division-mod-operator/" target="_blank">Given a sequence of words, print all anagrams together</a></li>
<li class="list"><a class="question-links"
href="https://www.geeksforgeeks.org/calculate-square-of-a-number-without-using-and-pow/#:~:text=Given%20an%20integer%20n%2C%20calculate,*%2C%20%2F%20and%20pow().&text=A%20Simple%20Solution%20is%20to%20repeatedly%20add%20n%20to%20result."
target="_blank">Divide two integers without using multiplication, division and mod operator</a></li>
<li class="list"><a class="question-links" href="https://practice.geeksforgeeks.org/problems/power-set4302/1" target="_blank">Power Set</a></li>
</ul>
</div>
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