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surendra_gangwar
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00/1431
days
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Language Used
C++, C, Python
Coding Score
645
Problem Solved
236
Contest Rating
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1512 points
Contributor
1512 points
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1 Point
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100 Point
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1k Point
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50k Point
0 submissions in current year
SCHOOL (1)
BASIC (22)
EASY (73)
MEDIUM (125)
HARD (15)
- Reverse a linked list
- Remove duplicates from an unsorted linked list
- Delete in a Doubly Linked List
- Inorder Traversal
- Reverse a Doubly Linked List
- Bubble Sort
- Insertion Sort
- Check for BST
- Right View of Binary Tree
- Delete without head pointer
- Height of Binary Tree
- Balanced Tree Check
- Kth from End of Linked List
- Middle of a Linked List
- Left View of Binary Tree
- Queue using two Stacks
- Stack using two queues
- Level Order in spiral form
- DFS of Graph
- Insert a node in a BST
- BFS of graph
- Identical Trees
- Root to leaf path sum
- Square Root
- Lowest Common Ancestor in a BST
- Remove Duplicates Sorted Array
- Level Order Line by Line
- Binary Tree to BST
- Convert to Roman No
- Delete in a Singly Linked List
- Kth largest element in BST
- Array Duplicates
- Level order traversal
- Inorder Successor in BST
- Level of a Node in Binary Tree
- Max and min element in Binary Tree
- Symmetric Tree
- Print adjacency list
- Rotate by 90 degree
- Anagram
- Reverse Words
- Parenthesis Checker
- Generate Binary Numbers
- Minimum Cost of ropes
- N meetings in one room
- Roman Number to Integer
- Excel Sheet | Part - 2
- Missing And Repeating
- Subarrays with given sum
- Find Kth Rotation
- Find the closest number
- Sorted and Rotated Minimum
- Chocolate Distribution Problem
- Find Pair Given Difference
- Check if a given string is a rotation of a palindrome
- Two Sum - Pair with Given Sum
- Two sum -Pairs with 0 Sum
- Four Elements
- Decode It
- Find the Highest number
- Shortest path from 1 to n
- nCr
- Find sum of divisors
- Perfect Numbers
- Check if it is possible to survive on Island
- Final Destination
- Trailing zeroes in factorial
- Least Prime Factor
- Find nth root of m
- Prime number of set bits
- Array to BST
- Sum of dependencies in a graph
- Count all possible paths from top left to bottom right
- Rotate a Linked List
- Add Number Linked Lists
- Detect Loop in linked list
- Insert in Sorted Circular Linked List
- Binary Tree from Inorder and Postorder
- Bottom View of Binary Tree
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Heap Sort
- Merge two sorted linked lists
- Flattening a Linked List
- Diagonal Tree Traversal
- Tree Boundary Traversal
- Delete a node from BST
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Largest subarray with 0 sum
- Topological sort
- Vertical Tree Traversal
- Merge K sorted linked lists
- Find the number of islands
- Serialize and deserialize a binary tree
- Is Binary Tree Heap
- Remove loop in Linked List
- Largest BST
- Implement Atoi
- Maximum Difference
- Palindrome Linked List
- Strongly Connected
- Rat in a Maze Problem - I
- Bipartite Graph
- Count distinct elements in every window
- Print Nodes having K leaves
- Top View of Binary Tree
- k-th Smallest in BST
- Merge Sort for Linked List
- Ancestors in Binary Tree
- Pair Sum in BST
- Root to Leaf Paths
- Counting elements in two arrays
- K Sum Paths
- Construct Tree from Inorder & Preorder
- Maximum path sum from any node
- Predecessor and Successor
- Convert Level Order Traversal to BST
- Swap Kth nodes from ends
- Ceil in BST
- Power Of Numbers
- Stock buy and sell
- Kadane's Algorithm
- Count Inversions
- Unique BST's
- Indexes of Subarray Sum
- Merge Without Extra Space
- Boolean Matrix
- Longest Consecutive Subsequence
- Next Greater Element
- K Sized Subarray Maximum
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Combination Sum
- Unique Subsets
- Minimum Jumps
- Stickler Thief
- Ways to Reach the n'th Stair
- Egg Dropping Puzzle
- Minimum number of jumps
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Equal Sum Partition
- X Total Shapes
- Find whether path exist
- Kth Smallest
- Rotten Oranges
- Maximize The Cut Segments
- Overlapping Intervals
- 4 Sum - All Quadruples
- Excel Sheet | Part - 1
- Sort 0s, 1s and 2s
- Single Among Doubles in a Sorted
- Consecutive 1's not allowed
- Search in Rotated Sorted Array
- Find Marks from Ranks
- Super Primes
- Maximum Product Subarray
- Longest Subarray with Sum K
- Length of the longest substring
- Longest Common Substring
- Longest Substring with K Uniques
- Longest Palindrome in a String
- Look and Say Pattern
- K-th element of two Arrays
- Longest Palindromic Subsequence
- First and Last Occurrences
- Permutations of a String
- Friends Pairing Problem
- Combination Sum - Part 2
- Largest prime factor
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Sieve of Eratosthenes
- Gold Mine Problem
- Coin Change (Minimum Coins)
- Power Set
- Count ways to N'th Stair(Order does not matter)
- nCr
- Maximum path sum in matrix
- Longest Bitonic subsequence
- Count the number of ways to tile the floor of size n x m using 1 x m size tiles
- Choose and Swap
- Find Prime numbers in a range
- Next Permutation
- Largest square formed in a matrix
- Kth Largest in a Stream
- The Infinite String
- Floyd Warshall
- Flood fill Algorithm
- Shortest Source to Destination Path
- Maximum sum Rectangle
- Flatten binary tree to linked list
- Overlapping Intervals
- Floor in BST
- Linked List Group Reverse
- Binary Tree to DLL
- Clone List with Next and Random
- Max rectangle
- LRU Cache
- Trapping Rain Water
- Histogram Max Rectangular Area
- Find median in a stream
- Solve the Sudoku
- Merge Without Extra Space
- Longest Prefix Suffix
- Edit Distance
- Matrix Chain Multiplication
- Median in a row-wise sorted Matrix
- N-Queen Problem
- Game of Function
- Count Linked List Nodes
- Count Leaves in Binary Tree
- Postorder Traversal
- Queue using Linked List
- Queue Using Array
- Doubly linked list Insertion at given position
- Preorder Traversal
- First Occurence
- C++ STL | Set 5 (queue)
- Linked List Insertion At End
- Minimum element in BST
- Circular Linked List Traversal
- Sum of Binary Tree
- Count Non-Leaf Nodes in Tree
- Binary Array Sorting
- Anagram Palindrome
- Array Subset
- GCD of Array
- Smallest Missing in Sorted Array
- Ways To Tile A Floor
- Count Squares
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