- Consecutive elements
- Power of 2
- Pythagorean Triplet
- Dice throw
- Permutations of a given string
- Missing number in array
- Swap two nibbles in a byte
- Count total set bits
- Number is sparse or not
- Bit Difference
- Number of occurrence
- Maximum repeating number
- Ways To Tile A Floor
- Find the Odd Occurence
- Longest Consecutive 1's
- Check if two arrays are equal or not
- Check if string is rotated by two places
- Find first set bit
- Find first repeated character
- First element to occur k times
- Check whether K-th bit is set or not
- Uncommon characters
- Rightmost different bit
- Set kth bit
- Toggle bits given range
- Odd to Even
- Minimum Distinct Ids
- Game of Function
- Print Linked List elements
- Delete node in Doubly Linked List
- Inorder Traversal
- Count Leaves in Binary Tree
- Height of Binary Tree
- Finding middle element in a linked list
- Circular Linked List
- Implement Stack using Linked List
- Implement Queue using Linked List
- Square root
- Remove duplicate elements from sorted Array
- Preorder Traversal
- Implement strstr
- Implement Atoi
- Minimum element in BST

Name

Random9

Rank in Institute

#65

Courses Attended

Campus Ambassador

Overall Coding Score: 779

Monthly Coding Score: 61

Weekly Coding Score: 0

- Anagram
- Search in a Rotated Array
- Squares in N*N Chessboard
- Reverse words in a given string
- Activity Selection
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Next greater number set digits
- Segregate even and odd nodes in a Linked List
- Longest Distinct characters in string
- N meetings in one room
- Remove Duplicates
- Maximum sum increasing subsequence
- Array to BST
- Max Sum without Adjacents
- Key Pair
- Add Binary Strings
- Reverse Bits
- Reach the Nth point
- Subarray with given sum
- Leaders in an array
- Swap all odd and even bits
- Count number of hops
- Triplet Sum in Array
- Minimum element in a sorted and rotated array
- Search in a matrix
- Day of the week
- 0 - 1 Knapsack Problem
- Cutted Segments
- Equilibrium point
- Flip Bits
- Finding the numbers
- Gold Mine Problem
- Game of XOR
- Sum of all substrings of a number
- Find all pairs with a given sum
- Check if frequencies can be equal
- Temple Offerings
- Longest Palindromic Subsequence
- Common elements
- Element with left side smaller and right side greater
- Array Subset of another array
- Four Elements
- Paths to reach origin
- Count all possible paths from top left to bottom right
- Swapping pairs make sum equal
- Minimum indexed character
- High-effort vs. Low-effort
- Stickler Thief
- Count the triplets
- Sum of two large numbers
- Longest substring with equal number of 0s and 1s
- Reverse a linked list
- Delete N nodes after M nodes of a linked list
- Rotate a Linked List
- Pairwise swap elements of a linked list
- Given a linked list of 0s, 1s and 2s, sort it.
- Add two numbers represented by linked lists
- Rearrange a linked list
- Add 1 to a number represented as linked list
- Merge 2 sorted linked list in reverse order
- Detect Loop in linked list
- Sorted insert for circular linked list
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Two Mirror Trees
- Maximum Width of Tree
- Diameter of Binary Tree
- Check for Balanced Tree
- Nth node from end of linked list
- Left View of Binary Tree
- Delete Middle of Linked List
- Merge two sorted linked lists
- Sum Tree
- Transform to Sum Tree
- Intersection of two sorted Linked lists
- Queue using two Stacks
- Remove duplicate element from sorted Linked List
- Stack using two queues
- Level order traversal in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- BFS of graph
- Lowest Common Ancestor in a Binary Tree
- Determine if Two Trees are Identical
- Root to leaf path sum
- Print all nodes that don't have sibling
- Absolute List Sorting
- Lowest Common Ancestor in a BST
- Largest subarray of 0's and 1's
- Level order traversal Line by Line
- Print BST elements in given range
- Largest subarray with 0 sum
- Odd even level difference
- Binary Tree to BST
- Leaf at same level
- Multiply two linked lists
- Expression Tree
- Check if Linked List is Palindrome
- Generate Grey Code Sequences
- Delete a Node in Single Linked List
- Kth largest element in BST
- Count distinct elements in every window
- Max Level Sum in Binary Tree
- Special Stack
- Root to leaf paths sum
- Sort a stack
- Longest consecutive sequence in Binary tree
- Print Common Nodes in BST
- Level order traversal
- Peak element
- Delete nodes greater than k
- Merge Sort for Linked List
- Union of Two Linked Lists
- Intersection of Two Linked Lists
- Ancestors in Binary Tree
- Root to Leaf Paths
- Maximum path sum
- Linked List that is Sorted Alternatingly
- Full binary tree
- Modify Linked List-1
- Symmetric Tree
- Construct Tree from Inorder & Preorder
- Construct BST from Postorder
- Vertical sum
- Check if Tree is Isomorphic
- Height of Spiral Tree
- Sum of Left Leaf Nodes
- Check if two Nodes are Cousins
- ZigZag Tree Traversal
- Sum of Leaf Nodes at Min Level

- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Overlapping Intervals
- Longest Increasing Subsequence
- Parenthesis Checker
- Longest Common Subsequence
- Minimum number of jumps
- Count ways to reach the n'th stair
- Egg Dropping Puzzle
- Edit Distance
- Consecutive 1's not allowed
- Path in Matrix
- Trapping Rain Water
- Subset Sum Problem
- Factorials of large numbers
- Number of Coins
- Minimum Platforms
- Largest Number formed from an Array
- Rearrange Array Alternately
- Relative Sorting
- Maximum of all subarrays of size k
- Largest square formed in a matrix
- Sorting Elements of an Array by Frequency
- Number of ways
- Minimum Cost of ropes
- Inversion of array
- Preorder to Postorder
- Longest consecutive subsequence
- Stock span problem
- Is Binary Number Multiple of 3
- Preorder Traversal and BST
- Maximum Profit
- Next larger element
- Total Decoding Messages
- Unique BST's
- Longest Common Substring
- Find all four sum numbers
- Print leaf nodes from preorder traversal of BST
- Check Mirror in N-ary tree
- Unit Area of largest region of 1's
- First non-repeating character in a stream
- Zero Sum Subarrays
- Smallest window in a string containing all the characters of another string
- Longest Bitonic subsequence
- Maximum sum Rectangle
- Array Pair Sum Divisibility Problem
- Longest Common Prefix in an Array
- Matrix Chain Multiplication
- K
^{th}Maximum element of Max-Heap - Reverse a Linked List in groups of given size.
- Count BST nodes that lie in a given range
- Check for BST
- 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
- 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
- Delete a node from BST
- 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
- Print a Binary Tree in Vertical Order
- Merge K sorted linked lists
- Find the number of islands
- Serialize and Deserialize a Binary Tree
- Make Binary Tree From Linked List
- Check if subtree
- Extreme nodes in alternate order
- Clone a Binary Tree
- Remove loop in Linked List
- Largest BST
- Interleaved Strings
- Find the Closest Element in BST
- Delete keys in a Linked list
- Merge two BST 's
- Length of longest palindrome in linked list
- Print Nodes having K leaves
- Top View of Binary Tree
- k-th smallest element in BST
- Polynomial Addition
- Find a pair with given target in BST
- K-Sum Paths
- Leftmost and rightmost nodes of binary tree
- Node at distance
- Leaves to DLL
- Construct Tree from Preorder Traversal
- Count Number of SubTrees having given Sum
- Swap Kth nodes from ends
- Unit Area of largest region of 1's