Name

Prakhar Bansal

Institution

Rank in Institute

#2

Courses Attended

Campus Ambassador

Overall Coding Score: 1072

Monthly Coding Score: 0

Weekly Coding Score: 0

- Reverse a linked list
- Rotate a Linked List
- Given a linked list of 0s, 1s and 2s, sort it.
- Rearrange a linked list
- Detect Loop in linked list
- Remove duplicates from an unsorted linked list
- Merge Sort
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Maximum Width of Tree
- Check for Balanced Tree
- Nth node from end of linked list
- Left View of Binary Tree
- Merge two sorted linked lists
- Sum Tree
- Remove duplicate element from sorted Linked List
- Level order traversal in spiral form
- Lowest Common Ancestor in a Binary Tree
- Absolute List Sorting
- Largest subarray of 0's and 1's
- Largest subarray with 0 sum
- Binary Tree to BST
- Find nth element of spiral matrix
- Check if Linked List is Palindrome
- Max Level Sum in Binary Tree
- Longest consecutive sequence in Binary tree
- Level order traversal
- Merge Sort for Linked List
- Union of Two Linked Lists
- Ancestors in Binary Tree
- Level of a Node in Binary Tree
- Root to Leaf Paths
- XOR of a given range
- Symmetric Tree
- ZigZag Tree Traversal
- Wave Array
- Search in a Rotated Array
- Minimum number of Coins
- Count Occurences of Anagrams
- Reverse words in a given string
- Move all zeroes to end of array
- Activity Selection
- Spirally traversing a matrix
- Longest Distinct characters in string
- Remove Duplicates
- Maximum sum increasing subsequence
- Array to BST
- Count number of hops
- 0 - 1 Knapsack Problem
- Longest Common Increasing Subsequence
- Maximize The Cut Segments
- Count number of substrings
- Element appearing once
- Finding the numbers
- Maximum Sum Bitonic Subsequence
- Let's Play!!!
- Flood fill Algorithm
- Smallest subarray with sum greater than x
- Palindromic patitioning
- Count all possible paths from top left to bottom right
- Shortest Common Supersequence
- Count the number of ways to tile the floor of size n x m using 1 x m size tiles
- Sum of Lengths of Non-Overlapping SubArrays

- Given a linked list, reverse alternate nodes and append at the end
- Reverse a Linked List in groups of given size.
- Delete nodes having greater value on right
- Quick Sort on Linked List
- Count BST nodes that lie in a given range
- Check for BST
- 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
- Construct Binary Tree from Parent Array
- Connect Nodes at Same Level
- Clone a linked list with next and random pointer
- Flattening a Linked List
- Diagonal Traversal of Binary Tree
- Boundary 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
- Maximum difference between node and its ancestor
- The Celebrity Problem
- Topological sort
- Vertical Traversal of Binary Tree
- Merge K sorted linked lists
- Find the number of islands
- Get minimum element from stack
- Circular tour
- Wildcard Pattern Matching
- Max rectangle
- Make Binary Tree From Linked List
- Check if subtree
- Extreme nodes in alternate order
- Clone a Binary Tree
- Remove loop in Linked List
- Max length chain
- Largest BST
- Interleaved Strings
- LRU Cache
- Box Stacking
- Count Palindromic Subsequences
- Minimum Swaps to Sort
- Number of root to leaf paths
- 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
- Print Nodes having K leaves
- Top View of Binary Tree
- Smallest range in K lists
- k-th smallest element in BST
- Euler Circuit in a Directed Graph
- Euler circuit and Path
- Binary Tree to CDLL
- Find a pair with given target in BST
- K-Sum Paths
- Leftmost and rightmost nodes of binary tree
- Node at distance
- Leaves to DLL
- Largest Independent Set Problem
- Construct Tree from Preorder Traversal
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- Swap Kth nodes from ends
- Maximum sum of Non-adjacent nodes
- Smallest Positive missing number
- Unique BST's
- Longest consecutive subsequence
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Rank The Permutations
- Maximum Sub Array
- Print Diagonally
- Overlapping Intervals
- Maximum Index
- Next Permutation
- Longest Increasing Subsequence
- Arithmetic Progression
- Parenthesis Checker
- Longest Common Subsequence
- Minimum number of jumps
- Edit Distance
- Magic Triplets
- nCr
- Maximum Rectangular Area in a Histogram
- Consecutive 1's not allowed
- Count of Subarrays
- Longest Even Length Substring
- Trapping Rain Water
- String formation from substring
- Case-specific Sorting of Strings
- Sum of bit differences
- Subset Sum Problem
- Maximize The Array
- Number of Coins
- Minimum Platforms
- Number following a pattern
- Largest Number formed from an Array
- Longest Palindrome in a String
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Maximum of all subarrays of size k
- Largest square formed in a matrix
- Boolean Matrix Problem
- Nuts and Bolts Problem
- Rotate a 2D array without using extra space
- Special Keyboard
- Form a palindrome
- Inversion of array
- Preorder to Postorder
- Length of the longest substring
- Longest consecutive subsequence
- Stock span problem
- Convert an array to reduced form
- Subsequence matching
- Handshakes
- Palindromic Array
- Is Binary Number Multiple of 3
- Possible groups
- Max possible amount
- Bleak Numbers
- Maximum Profit
- Circle of strings
- Largest number in K swaps
- Next larger element
- Combination Sum - Part 2
- Word Break
- Longest Prefix Suffix
- Kth smallest element
- Longest Common Substring
- Count Palindrome Sub-Strings of a String
- Rotate and delete
- Negative weight cycle
- Hamiltonian Path
- Snake and Ladder Problem
- Knight Walk
- Find all four sum numbers
- Word Boggle
- Max absolute difference
- Distance of nearest cell having 1
- Find whether path exist
- Unit Area of largest region of 1's
- Rearrange characters
- Express as sum of power of natural numbers
- First non-repeating character in a stream
- Count subsequences of type a^i b^j c^k
- Stepping Numbers
- Zero Sum Subarrays
- Smallest window in a string containing all the characters of another string
- Smallest distinct window
- Floyd Warshall
- Nearly Sorted Algorithm
- Smallest Positive missing number
- Longest Bitonic subsequence
- Reverse Spiral Form of Matrix
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Perfect Sum Problem
- Array Pair Sum Divisibility Problem
- Job Sequencing Problem
- Top k numbers in a stream
- LCS of three strings
- Longest Common Prefix in an Array
- Median In a Row-Wise sorted Matrix
- In First But Second
- Matrix Chain Multiplication
- Longest subarray with sum divisible by K
- Longest Sub-Array with Sum K
- Beautiful SubSequence
- The Painter's Partition Problem
- Optimal Strategy For A Game

- Reorder List
- Binary Tree to DLL
- Maximum subset XOR
- Alien Dictionary
- Fixing Two nodes of a BST
- Number of Turns in Binary Tree
- Minimum Points To Reach Destination
- Minimum sum partition
- Maximum of minimum for every window size
- Head to Tail ordering
- Merge Without Extra Space
- Next Smallest Palindrome
- Find sum of different corresponding bits for all pairs
- Allocate minimum number of pages
- A Simple Fraction
- Ugly Numbers
- Boolean Parenthesization
- Longest valid Parentheses
- Word Break - Part 2
- Minimum Cost Path
- Find median in a stream
- Travelling Salesman Problem
- Max Circular Subarray Sum
- Distinct palindromic substrings
- Similar expressions
- Convert to Strictly increasing array
- Count the subarrays having product less than k
- Bike Racing
- Adventure in a Maze
- Kill Captain America