- Count Leaves in Binary Tree
- Height of Binary Tree
- Finding middle element in a linked list
- Circular Linked List
- Postorder Traversal
- Square root
- Implement strstr
- Find triplets with zero sum
- Minimum element in BST
- Maximum in Struct Array
- longest substring containing '1'
- Power of 2
- Pythagorean Triplet
- Majority Element
- Permutations of a given string
- Missing number in array
- Number of paths
- k largest elements
- Find position of set bit
- Set Bits
- Reverse each word in a given string
- Replace the Bit
- Closest Number
- Find the fine

Name

whatever

Rank in Institute

#2

Courses Attended

Overall Coding Score: 1096

Monthly Coding Score: 272

Weekly Coding Score: 92

- Reverse a linked list
- Occurence of an integer in 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
- Compare two linked lists
- Merge 2 sorted linked list in reverse order
- Detect Loop in linked list
- Remove duplicates from an unsorted linked list
- Sorted insert for circular linked list
- Merge Sort
- 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
- Level order traversal in spiral form
- Reverse Level Order Traversal
- 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
- Lowest Common Ancestor in a BST
- Level order traversal Line by Line
- Print BST elements in given range
- Largest subarray with 0 sum
- Binary Tree to BST
- Distinct occurrences
- Check if Linked List is Palindrome
- Generate Grey Code Sequences
- Kth largest element in BST
- Count distinct elements in every window
- Level order traversal
- Inorder Successor in BST
- Delete nodes greater than k
- Index Of an Extra Element
- Merge Sort for Linked List
- Union of Two Linked Lists
- Intersection of Two Linked Lists
- Ancestors in Binary Tree
- Level of a Node in Binary Tree
- Root to Leaf Paths
- Maximum path sum
- Symmetric Tree
- Construct Tree from Inorder & Preorder
- Check if Tree is Isomorphic
- Sum of Leaf Nodes
- ZigZag Tree Traversal
- Sum of Leaf Nodes at Min Level
- Reverse words in a given string
- Number of Unique Paths
- Print Pattern
- Search in a Rotated Array
- Palindrome numbers
- Non Repeating Character
- Minimum number of Coins
- First Repeating Element
- Count Occurences of Anagrams
- Reverse words in a given string
- Remove all duplicates from a given string
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Next greater number set digits
- Element that appears once where every element occurs twice
- Longest Distinct characters in string
- Maximum Product Subarray
- Remove Duplicates
- Maximum sum increasing subsequence
- Reach the Nth point
- Subarray with given sum
- Adjacents are not allowed
- Count number of hops
- Reach a given score
- Minimum element in a sorted and rotated array
- Day of the week
- 0 - 1 Knapsack Problem
- Longest Common Increasing Subsequence
- Skip the work
- Valid Substring
- Cutted Segments
- Number of distinct subsequences
- Count number of substrings
- Buildings receiving sunlight
- Flip Bits
- Finding the numbers
- Pairs with specific difference
- Count Pairs in an Array
- Maximum Sum Bitonic Subsequence
- Knapsack with Duplicate Items
- Decode the pattern
- Longest K unique characters substring
- Maximum no of 1's row
- Friends Pairing Problem
- Gold Mine Problem
- Minimum Operations
- Largest zigzag sequence
- Temple Offerings
- Excel Sheet | Part - 2
- Find the string in grid
- Increasing Sub Sequence
- Longest Palindromic Subsequence
- Rod Cutting
- Element with left side smaller and right side greater
- Array Subset of another array
- Paths to reach origin
- Get Minimum Squares
- Nth catalan number
- Count all possible paths from top left to bottom right
- Minimum Deletions
- Shortest Common Supersequence
- Ticket sellers
- Minimum insertions to sort an array
- Minimum number of deletions to make a sorted sequence
- Minimum steps to minimize n as per given condition
- Minimum number of deletions.
- Longest alternating subsequence
- Ways to sum to N
- Subset with sum divisible by m
- Count of strings that can be formed using a, b and c under given constraints
- Find length of longest subsequence
- Longest subsequence-1
- Sum of average of all subsets
- Maximum sum Problem
- Find number of times a string occurs as a subsequence
- Minimum Cost To Make Two Strings Identical
- Find minimum adjustment cost of an array
- High-effort vs. Low-effort
- Longest Repeating Subsequence
- Stickler Thief
- Transform the array
- Count the triplets
- Sum of two large numbers
- Find if string is K-Palindrome or not
- Longest common prefix
- Pairs which are Divisible by 4
- Maximum difference of zeros and ones in binary string
- Nearest multiple of 10
- Print Bracket Number
- Cutting Binary String
- Check if any valid sequence is divisible by M
- Minimal moves to form a string

- Reverse a Linked List in groups of given size.
- Check for BST
- Tree from Postorder and Inorder
- Delete without head pointer
- Intersection Point in Y Shapped Linked Lists
- 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
- The Celebrity Problem
- Topological sort
- Print a Binary Tree in Vertical Order
- Find the number of islands
- Get minimum element from stack
- Serialize and Deserialize a Binary Tree
- Circular tour
- Max rectangle
- Check if subtree
- Remove loop in Linked List
- Max length chain
- Largest BST
- Interleaved Strings
- Box Stacking
- Count Palindromic Subsequences
- Multiply two strings
- Minimum Swaps to Sort
- Strongly Connected Components (Kosaraju's Algo)
- Rat in a Maze Problem
- Bipartite Graph
- Max sum subarray by removing at most one element
- Merge two BST 's
- Merge k Sorted Arrays
- Length of longest palindrome in linked list
- k-th smallest element in BST
- Euler Circuit in a Directed Graph
- Largest Independent Set Problem
- Count Number of SubTrees having given Sum
- Unique BST's
- Unit Area of largest region of 1's
- Count ways to N'th Stair(Order does not matter)
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Excel Sheet | Part - 1
- Print Diagonally
- Equal Sum
- Next Permutation
- Longest Increasing Subsequence
- Longest Common Subsequence
- Minimum number of jumps
- Count ways to reach the n'th stair
- Count ways to N'th Stair(Order does not matter)
- Egg Dropping Puzzle
- Edit Distance
- nCr
- Maximum Rectangular Area in a Histogram
- Min Coin
- Consecutive 1's not allowed
- Count of Subarrays
- Longest Even Length Substring
- Path in Matrix
- Trapping Rain Water
- Subset Sum Problem
- Maximize The Array
- Factorials of large numbers
- Number of Coins
- Stock buy and sell
- Largest Number formed from an Array
- Longest Palindrome in a String
- Rearrange an array with O(1) extra space
- Largest square formed in a matrix
- Boolean Matrix Problem
- Sorting Elements of an Array by Frequency
- Design a tiny URL or URL shortener
- Special Keyboard
- Number of ways
- Minimum Cost of ropes
- Sum of Query II
- Form a palindrome
- Inversion of array
- Length of the longest substring
- Longest consecutive subsequence
- Convert an array to reduced form
- M-Coloring Problem
- Tic-Tac-Toe
- Unique partitions
- Is Binary Number Multiple of 3
- Longest Arithmetic Progression
- Subsets with XOR value
- Jumbled Strings
- Palindromic Strings
- Max possible amount
- Maximum Profit
- Queries on Strings
- Next larger element
- Taking 1 out of 3 consecutives
- Total Decoding Messages
- Unique BST's
- Distinct Transformations
- Subsets
- Word Break
- Kth smallest element
- Maximum calorie
- Find the pattern
- Longest Common Substring
- Count Palindrome Sub-Strings of a String
- Hamiltonian Path
- Snake and Ladder Problem
- Shortest Source to Destination Path
- Divisibility tree
- Knight Walk
- Find all four sum numbers
- Word Boggle
- Is Sudoku Valid
- Find whether path exist
- Unit Area of largest region of 1's
- First non-repeating character in a stream
- Count subsequences of type a^i b^j c^k
- Matrix Exponentiation
- Zero Sum Subarrays
- Smallest window in a string containing all the characters of another string
- Smallest distinct window
- Floyd Warshall
- Nearly Sorted Algorithm
- Longest Bitonic subsequence
- Mobile numeric keypad
- Pyramid form
- Minimum Time
- Word Wrap
- Perfect Sum Problem
- Count possible ways to construct buildings
- Firing employees
- Min cut Square
- Rotten Oranges
- Modify array to maximize sum of adjacent differences
- Probability of Knight
- LCS of three strings
- Two water Jug problem
- Longest Common Prefix in an Array
- Minimum cost to fill given weight in a bag
- Steps by Knight
- Brackets in Matrix Chain Multiplication
- Matrix Chain Multiplication
- Pizza Mania
- Count of Palindromic substrings in an Index range
- Longest subarray with sum divisible by K
- Subarrays with equal 1s and 0s
- Longest Sub-Array with Sum K
- Beautiful SubSequence
- The Painter's Partition Problem
- Optimal Strategy For A Game

- Binary Tree to DLL
- Partition array to K subsets
- Longest Palindromic Substring in Linear Time
- Alien Dictionary
- Solve the Sudoku
- Minimum Points To Reach Destination
- Minimum sum partition
- Merge Without Extra Space
- Allocate minimum number of pages
- Longest valid Parentheses
- Minimum Cost Path
- N-Queen Problem
- Solve the Sudoku
- Find median in a stream
- Distinct palindromic substrings
- Longest Zig-Zag Sub Sequence
- Convert to Strictly increasing array
- Phone directory