Module 1: Time Complexity | Basic Mathematics | Bit Manipulation

• Problems
  • GCD: https://leetcode.com/problems/find-greatest-common-divisor-of-array/
  • LCM: https://practice.geeksforgeeks.org/problems/lcm-of-given-array-elements3919/1
  • Get,Set & clear Ith bit: https://practice.geeksforgeeks.org/problems/bit-manipulation-1666686020/1
  • CountSetBit: https://practice.geeksforgeeks.org/problems/set-bits0143/1
  • CountAllSetBits: https://practice.geeksforgeeks.org/problems/sherlock-and-his-enemies2304/1

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Module 2: Arrays | Recursion | Backtracking

• Missing Number: https://leetcode.com/problems/missing-number/description/

• Duplicate Number: https://leetcode.com/problems/find-the-duplicate-number/description/

• Occuring Odd times: https://www.geeksforgeeks.org/problems/alone-in-couple5507/1

• Majority Element: https://leetcode.com/problems/majority-element/description/

• Majority Element II: https://leetcode.com/problems/majority-element-ii/description/

• Pair Equal to Sum: https://www.geeksforgeeks.org/problems/key-pair5616/1

• Segregate 0's and 1's: https://www.geeksforgeeks.org/problems/segregate-0s-and-1s5106/1

• Maximum Index: https://www.geeksforgeeks.org/problems/maximum-index3307/1

• Sum Closes to Zero: https://www.geeksforgeeks.org/problems/two-numbers-with-sum-closest-to-zero1737/1

• Two Repeated Elements: https://www.geeksforgeeks.org/problems/two-repeated-elements-1587115621/1

• Triplet Sum: https://www.geeksforgeeks.org/problems/triplet-sum-in-array-1587115621/1

• Bitonic Point: https://www.geeksforgeeks.org/problems/maximum-value-in-a-bitonic-array3001/1

• Rotate Array: https://leetcode.com/problems/rotate-array/description/

• Search in Rotsted Array: https://leetcode.com/problems/search-in-rotated-sorted-array/description/

• Subarray Sum Equals K: https://leetcode.com/problems/subarray-sum-equals-k/description/

• Trapping Rainwater: https://leetcode.com/problems/trapping-rain-water/

• Fibonacci Series: https://www.geeksforgeeks.org/problems/nth-fibonacci-number1335/1

• Factorial: https://www.geeksforgeeks.org/problems/factorial5739/1

• Tower of Hanoi: https://www.geeksforgeeks.org/problems/tower-of-hanoi-1587115621/1

• Generate all Paranthesis: https://leetcode.com/problems/generate-parentheses/

• Knight tour: https://leetcode.com/problems/check-knight-tour-configuration

• Rat in A maze: https://www.geeksforgeeks.org/problems/rat-in-a-maze-problem/1

• N Queen Puzzle: https://leetcode.com/problems/n-queens

• Subset Sum: https://www.geeksforgeeks.org/problems/perfect-sum-problem5633/1

• Sudoku Solver: https://leetcode.com/problems/sudoku-solver/description/

• Bonus Practice

  • Find Peak: https://leetcode.com/problems/find-peak-element/description/

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Module 3: LinkedList | Stack | Queue

• Count Nodes: https://www.geeksforgeeks.org/problems/count-nodes-of-linked-list/1

• Reverse a linked list: https://www.geeksforgeeks.org/problems/reverse-a-linked-list/1

• Deletion a node: https://www.geeksforgeeks.org/problems/delete-a-node-in-single-linked-list/1

• Kth Node: https://www.geeksforgeeks.org/problems/node-at-a-given-index-in-linked-list/1

• Kth Node from End: https://leetcode.com/problems/remove-nth-node-from-end-of-list

• Middle in a LinkedList: https://leetcode.com/problems/middle-of-the-linked-list

• Cycle in LinkedList: https://leetcode.com/problems/linked-list-cycle

• Check if LL is Palindromic: https://leetcode.com/problems/palindrome-linked-list

• Reverse a DLL: https://www.geeksforgeeks.org/problems/reverse-a-doubly-linked-list/1

• Find first Node of circular LL: https://leetcode.com/problems/linked-list-cycle-ii

• Intersect Point of Two LL: https://leetcode.com/problems/intersection-of-two-linked-lists

• Alternate Split of LL: https://www.geeksforgeeks.org/problems/split-singly-linked-list-alternatingly/1

• Merge two sorted LL: https://leetcode.com/problems/merge-two-sorted-lists/description/

• Greatest Value node on Right Side: https://leetcode.com/problems/next-greater-node-in-linked-list

• Add two Numbers: https://leetcode.com/problems/add-two-numbers

• Merge Sort on LL: https://leetcode.com/problems/sort-list

• Rotate List ClockWise: https://leetcode.com/problems/rotate-list/

• Rotate CounterClockwise: https://www.geeksforgeeks.org/problems/rotate-a-linked-list/1

• Reverse in Group of K Nodes: https://leetcode.com/problems/reverse-nodes-in-k-group/

• Flatten a LL: https://www.geeksforgeeks.org/problems/flattening-a-linked-list/1

• Copy with Random Pointer: https://leetcode.com/problems/copy-list-with-random-pointer

• Merge K Sorted LL: https://leetcode.com/problems/merge-k-sorted-lists

• Balanced Paranthesis: https://leetcode.com/problems/valid-parentheses

• Min Stack: https://leetcode.com/problems/min-stack/

• Infix to Postfix: https://www.geeksforgeeks.org/problems/infix-to-postfix-1587115620/1

• Stock Problem:

• Celebratity Problem: https://www.geeksforgeeks.org/problems/the-celebrity-problem/1

• Infix to Postfix: https://www.geeksforgeeks.org/problems/infix-to-postfix-1587115620/1

• Largest Rectangle in Histogram: https://leetcode.com/problems/largest-rectangle-in-histogram/

• LRU Cache: https://leetcode.com/problems/lru-cache

• Gas Stattion: https://leetcode.com/problems/gas-station

• Sliding Window Maximum: https://leetcode.com/problems/sliding-window-maximum

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Module 4: Hashing | Strings

• Array Subset of Another Array: https://www.geeksforgeeks.org/problems/array-subset-of-another-array2317/1
• Pattern Search: https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string (Sliding Window | Rabin Karp | KMP)
• Implement Atoi: https://leetcode.com/problems/string-to-integer-atoi
• Anagrams: https://www.geeksforgeeks.org/problems/anagram-1587115620/1
• Minimum Swap to Make Strings Balanced: https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced
• Isomorphic String: https://leetcode.com/problems/isomorphic-strings/
• Longest Substring without Repeating: https://leetcode.com/problems/longest-substring-without-repeating-characters

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Module 5: Tree and Heap