- Problem 1: Find the Duplicate Number (https://leetcode.com/problems/find-the-duplicate-number/description/)
- Problem 2: Remove Duplicates from sorted Array (https://leetcode.com/problems/remove-duplicates-from-sorted-array/description/)
- Problem 3: Sort the colors (https://leetcode.com/problems/sort-colors/description/)
- Problem 4: set the matrix Zerors (https://leetcode.com/problems/set-matrix-zeroes/description/)
- Problem 5: Move Zerors (https://leetcode.com/problems/move-zeroes/description/)
- Problem 6: Best time to buy and sell Stock (https://leetcode.com/problems/best-time-to-buy-and-sell-stock/description/)
- Problem 7: Chocolate Distribution problem (https://www.geeksforgeeks.org/problems/chocolate-distribution-problem3825/1)
- Problem 8: Find all Duplicates in Array (https://leetcode.com/problems/find-all-duplicates-in-an-array/description/)
- Problem 9: Two SumI (https://leetcode.com/problems/two-sum/description/)
- Problem 10: Majority Element (https://leetcode.com/problems/majority-element/description/)
- Problem 11: Container With Most Water (https://leetcode.com/problems/container-with-most-water/description/)
- Problem 12: Reverse Pairs (https://leetcode.com/problems/reverse-pairs/description/)
- Problem 13: Best time to buy and sell Stock 2 (https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/description/)
- Problem 14: 3Sum Leetcode (https://leetcode.com/problems/3sum/description/)
- Problem 15: SubArray Sum equals k (https://leetcode.com/problems/subarray-sums-divisible-by-k/description/)
- Problem 16: Merge two Sorted Arrays (https://leetcode.com/problems/merge-sorted-array/description/)
- Problem 17: Maximum Points You can Obtain From Cards (https://leetcode.com/problems/maximum-points-you-can-obtain-from-cards/)
- Problem 18: Word Search (https://leetcode.com/problems/word-search/)
- Problem 19: Game of Life (https://leetcode.com/problems/game-of-life/)
- Problem 20: Jump Game (https://leetcode.com/problems/jump-game/)
- Problem 21: Subarray Sums Divisible by K (https://leetcode.com/problems/subarray-sums-divisible-by-k/)
- Problem 22: Largest Rectangle in Histogram (https://leetcode.com/problems/largest-rectangle-in-histogram/)
- Problem 23: Insert Delete GetRandom O(1)-Duplicates Allowed (https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed/)
- Problem 24: Max Value of Equation (https://leetcode.com/problems/max-value-of-equation/)
- Problem 25: 4Sum (https://leetcode.com/problems/4sum/description/)
- Problem 1: Valid Parentheses (https://leetcode.com/problems/valid-parentheses/description/)
- Problem 2: Printing all duplicates chararcter in String (https://www.geeksforgeeks.org/print-all-the-duplicates-in-the-input-string/)
- Problem 3: Find the index of first occurrence in a String (https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/description/)
- Problem 4: Valid PalindromeII (https://leetcode.com/problems/valid-palindrome-ii/description/)
- Problem 5: Longest Common Prefix (https://leetcode.com/problems/longest-common-prefix/)
- Problem 6: Longest Repeating Character Replacement (https://leetcode.com/problems/longest-repeating-character-replacement/)
- Problem 7: Generate Parentheses (https://leetcode.com/problems/generate-parentheses/)
- Problem 8: Simplify Path (https://leetcode.com/problems/simplify-path/)
- Problem 9: Reverse Words in String (https://leetcode.com/problems/reverse-words-in-a-string/)
- Problem 1: Middle of the LinkedList (https://leetcode.com/problems/middle-of-the-linked-list/description/)
- Problem 2: Remove Linked List elements (https://leetcode.com/problems/remove-linked-list-elements/description/)
- Problem 3: Merge Two Sorted LinkedList (https://leetcode.com/problems/merge-two-sorted-lists/description/)
- Problem 4: Convert Binary Number in a LinkedList to Integer (https://leetcode.com/problems/convert-binary-number-in-a-linked-list-to-integer/description/)
- Problem 5: Reverse LinkedList (https://leetcode.com/problems/reverse-linked-list/description/)
- Problem 5: Linked List Cycle (https://leetcode.com/problems/linked-list-cycle/description/)
- Problem 6: Remove Duplicates From Linked List (https://leetcode.com/problems/remove-duplicates-from-sorted-list/)
- Problem 7: Intersection of two Linked List (https://leetcode.com/problems/intersection-of-two-linked-lists/)
- Problem 8: Integer to Roman (https://leetcode.com/problems/integer-to-roman/)
- Problem 9: Palindrome Linked List (https://leetcode.com/problems/palindrome-linked-list/)
- Problem 10: Add Two Numbers (https://leetcode.com/problems/add-two-numbers/)
- Problem 1: Add Binary (https://leetcode.com/problems/add-binary/description/)
- Problem 2: Excel Sheet Column Title (https://leetcode.com/problems/excel-sheet-column-title/description/)
- Problem 3: Product array Puzzle (https://www.geeksforgeeks.org/problems/product-array-puzzle4525/1)
- Problem 4: Maximum Product of three Numbers (https://leetcode.com/problems/maximum-product-of-three-numbers/)
- Problem 5: Minimum Moves to Equal Array Element 2 (https://leetcode.com/problems/minimum-moves-to-equal-array-elements-ii/)
- Problem 1: Rotate Image (https://leetcode.com/problems/rotate-image/description/)
- Problem 2: Spiral Matrix (https://leetcode.com/problems/spiral-matrix/description/)
- Problem 3: Number of Islands (https://www.geeksforgeeks.org/find-the-number-of-islands-using-dfs/)
- Problem 4: Given a matrix of ‘O’ and ‘X’, replace ‘O’ with ‘X’ if surrounded by ‘X’ (https://www.geeksforgeeks.org/given-matrix-o-x-replace-o-x-surrounded-x/)
- Problem 1: Implement Queue using Stacks (https://leetcode.com/problems/implement-queue-using-stacks/description/)
- Problem 2: Daily Temperatures (https://leetcode.com/problems/daily-temperatures/)
- Problem 3: Backspace String Compare (https://leetcode.com/problems/backspace-string-compare/)
- Problem 1: Check if reversing a sub array make the array sorted (https://www.geeksforgeeks.org/check-reversing-sub-array-make-array-sorted/)
- Problem 2: Radix Sort (https://www.geeksforgeeks.org/radix-sort/)
- Problem 3: Find Peak Element (https://www.geeksforgeeks.org/make-array-elements-equal-minimum-cost/)
- Problem 4: Search in Rotated Array (https://leetcode.com/problems/search-in-rotated-sorted-array/)
- Problem 5: Split Array Largest Sum (https://leetcode.com/problems/split-array-largest-sum/)
- Problem 1: Top K frequent Element (https://leetcode.com/problems/top-k-frequent-elements/)
- Problem 2: Kth largest Element in an array (https://leetcode.com/problems/kth-largest-element-in-an-array/description/)
- Problem 3: Ugly Number 2 (https://leetcode.com/problems/ugly-number-ii/description/)
- Problem 4: Furthest Building You can Reach (https://leetcode.com/problems/furthest-building-you-can-reach/description/)
- Problem 5: Kth smallest Element in a sorted Matrix (https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/description/)
- Problem 6: Reorganize String (https://leetcode.com/problems/reorganize-string/description/)
- Problem 7: Find the most Competitive Subsquence (https://leetcode.com/problems/find-the-most-competitive-subsequence/)
- Problem 8: K closest Points to Origin (https://leetcode.com/problems/k-closest-points-to-origin/)
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Problem 1: Gas Station (https://leetcode.com/problems/gas-station/description/)
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Problem 2: Minimum cost for acquiring all coins with k extra coins allowed with every coin (https://www.geeksforgeeks.org/minimum-cost-for-acquiring-all-coins-with-k-extra-coins-allowed-with-every-coin/)
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Problem 3: Restore the Array From Adjacent Pairs (https://leetcode.com/problems/restore-the-array-from-adjacent-pairs/description/)
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Problem 4: Task Scheduler (https://leetcode.com/problems/task-scheduler/submissions/1349152089/)
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Problem 5: Minimum Deletions To make Character frequencies unique (https://leetcode.com/problems/minimum-deletions-to-make-character-frequencies-unique/description/)
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Problem 6: Remove K digits (https://leetcode.com/problems/remove-k-digits/)
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Problem 7: Chocola (https://www.spoj.com/problems/CHOCOLA/)
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Problem 8: Non-overlapping Intervals (https://leetcode.com/problems/non-overlapping-intervals/)
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Problem 9: Minimum Time to make Rope Colorful (https://leetcode.com/problems/minimum-time-to-make-rope-colorful/description/)