Name

Shubham Gupta

Rank in Institute

#58

Campus Ambassador

Overall Coding Score: 770

Monthly Coding Score: 0

Weekly Coding Score: 0

- You and your books
- Maximum Bipartite Matching
- Lowest Common Ancestor in a Binary Tree
- BFS of graph
- DFS of Graph
- Left View of Binary Tree
- Mother Vertex
- Quick Sort
- Merge Sort
- Reverse words in a given string
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Maximum sum increasing subsequence
- Subarray with given sum
- Leaders in an array
- Count number of hops
- Cycle Race
- Possible paths
- Game of Death in a circle
- Final Destination
- 1[0]1 Pattern Count
- Flood fill Algorithm
- Element with left side smaller and right side greater
- Transitive closure of a Graph
- Eulerian Path in an Undirected Graph

- Rat in a Maze Problem
- Bipartite Graph
- Strongly Connected Components (Kosaraju's Algo)
- Find the Closest Element in BST
- Delete keys in a Linked list
- Merge two BST 's
- Merge k Sorted Arrays
- Length of longest palindrome in linked list
- Bridge Edge in Graph
- Minimum Swaps to Sort
- k-th smallest element in BST
- Binary Tree to CDLL
- Euler Circuit in a Directed Graph
- Euler circuit and Path
- Minimum Spanning Tree
- Find a pair with given target in BST
- Occurences of 2 as a digit
- Leftmost and rightmost nodes of binary tree
- Largest Independent Set Problem
- Construct Tree from Preorder Traversal
- Count Number of SubTrees having given Sum
- Path Count in Directed Graph
- Unique BST's
- Unit Area of largest region of 1's
- Count ways to N'th Stair(Order does not matter)
- Interleaved Strings
- Count BST nodes that lie in a given range
- Tree from Postorder and Inorder
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection Point in Y Shapped Linked Lists
- Add all greater values to every node in a BST
- Connect Nodes at Same Level
- Clone a linked list with next and random pointer
- Diagonal Traversal of Binary Tree
- Detect cycle in a directed graph
- Detect cycle in an undirected graph
- Min distance between two given nodes of a Binary Tree
- Range Minimum Query
- The Celebrity Problem
- Topological sort
- Merge K sorted linked lists
- Serialize and Deserialize a Binary Tree
- Extreme nodes in alternate order
- Kth element in Matrix
- Clone a Binary Tree
- Remove loop in Linked List
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Max length chain
- Reverse a Linked List in groups of given size.
- Box Stacking
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Excel Sheet | Part - 1
- Print Diagonally
- Overlapping Intervals
- Next Permutation
- Longest Increasing Subsequence
- Parenthesis Checker
- Longest Common Subsequence
- Minimum number of jumps
- Count ways to N'th Stair(Order does not matter)
- Egg Dropping Puzzle
- Edit Distance
- Magic Triplets
- nCr
- Maximum Rectangular Area in a Histogram
- Count of Subarrays
- Longest Even Length Substring
- Path in Matrix
- Trapping Rain Water
- Maximize The Array
- Minimum Platforms
- Number following a pattern
- Find Prime numbers in a range
- Stock buy and sell
- Largest Number formed from an Array
- Modular Exponentiation for large numbers
- Rearrange Array Alternately
- Relative Sorting
- Maximum of all subarrays of size k
- Largest square formed in a matrix
- Row with max 1s
- Boolean Matrix Problem
- Design a tiny URL or URL shortener
- Rotate a 2D array without using extra space
- Special Keyboard
- Number of ways
- Minimum Cost of ropes
- Sum of Query II
- Form a palindrome
- Inversion of array
- Preorder to Postorder
- Length of the longest substring
- Longest consecutive subsequence
- Stock span problem
- Handshakes
- Palindromic Array
- Jumbled Strings
- Max possible amount
- Maximum Profit
- Circle of strings
- Nodes at even distance
- Your Social Network
- X Total Shapes
- Unique BST's
- Distinct Transformations
- Word Break
- Longest Prefix Suffix
- Kth smallest element
- Longest Common Substring
- Negative weight cycle
- Hamiltonian Path
- Snake and Ladder Problem
- Divisibility tree
- Number of Palindromic paths in a Matrix
- Trie | (Insert and Search)
- Knight Walk
- Word Boggle
- Distance of nearest cell having 1
- Is Sudoku Valid
- Find whether path exist
- Check Mirror in N-ary tree
- Unit Area of largest region of 1's
- Rearrange characters
- Express as sum of power of natural numbers
- Count subsequences of type a^i b^j c^k
- Stepping Numbers
- K
^{th}largest element in a stream - Zero Sum Subarrays
- Magnet Array Problem
- Smallest window in a string containing all the characters of another string
- Smallest distinct window
- Floyd Warshall
- Huffman Encoding
- Infix to Postfix
- Optimal binary search tree
- Smallest Positive missing number
- Longest Bitonic subsequence
- Pyramid form
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Perfect Sum Problem
- Rotten Oranges
- Modify array to maximize sum of adjacent differences
- LCS of three strings
- Minimum cost to fill given weight in a bag
- Steps by Knight
- Brackets in Matrix Chain Multiplication
- Matrix Chain Multiplication
- Print N-bit binary numbers having more 1’s than 0’s
- Biconnected Graph
- Pizza Mania
- Maximize the sum of selected numbers from an array to make it empty
- Construct binary palindrome by repeated appending and trimming

- Alien Dictionary
- Fixing Two nodes of a BST
- Reorder List
- Minimum sum partition
- Find sum of different corresponding bits for all pairs
- Ugly Numbers
- Path of greater than equal to k length
- Word Break - Part 2
- Minimum Cost Path
- Solve the Sudoku
- Travelling Salesman Problem
- Distinct palindromic substrings
- Doctor Strange