- Count Leaves in Binary Tree
- Height of Binary Tree
- Finding middle element in a linked list
- Implement Stack using Linked List
- Implement Queue using Linked List
- Binary Search
- Implement strstr
- Implement Atoi
- Pythagorean Triplet
- Permutations of a given string
- Missing number in array
- Number of paths
- Convert array into Zig-Zag fashion
- Reverse array in groups
- Count Squares
- Padovan Sequence
- Minimize the sum of product
- Squares in a Matrix
- Check if two arrays are equal or not
- Check if string is rotated by two places
- Find first set bit
- Find first repeated character
- Find the element that appears once in sorted array
- Last index of One
- 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

Name

Sorry

Rank in Institute

#4

Courses Attended

Overall Coding Score: 1393

Monthly Coding Score: 0

Weekly Coding Score: 0

- Reverse 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
- Detect Loop in linked list
- Merge Sort
- Quick Sort
- Mirror Tree
- Check for Balanced Tree
- Heap Sort
- Nth node from end of linked list
- Left View of Binary Tree
- Merge two sorted linked lists
- Queue using two Stacks
- Stack using two queues
- Level order traversal in spiral form
- DFS of Graph
- BFS of graph
- Determine if Two Trees are Identical
- Largest subarray of 0's and 1's
- Largest subarray with 0 sum
- Distinct occurrences
- Josephus problem
- You and your books
- Check if Linked List is Palindrome
- Minimum four sum subsequence
- Count distinct elements in every window
- Sort a stack
- Counting Sort
- Symmetric Tree
- Learn to Comment
- Learning Macros
- Anagram
- Number of Unique Paths
- Wave Array
- Squares in N*N Chessboard
- Maximize Toys
- Minimum number of Coins
- Reverse words in a given string
- Activity Selection
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Longest Distinct characters in string
- Sum of Query I
- N meetings in one room
- Remove Duplicates
- Maximum sum increasing subsequence
- Reach the Nth point
- Subarray with given sum
- Adjacents are not allowed
- Leaders in an array
- Count number of hops
- Count pairs with given sum
- Reach a given score
- Shop in Candy Store
- Largest number possible
- Skip the work
- Tom and Jerry
- Cutted Segments
- Equilibrium point
- Lucas Number
- Pairs with specific difference
- Chocolate Distribution Problem
- Maximum Sum Bitonic Subsequence
- Knapsack with Duplicate Items
- Flood fill Algorithm
- Gold Mine Problem
- Minimum Operations
- Find all pairs with a given sum
- Check if frequencies can be equal
- Largest zigzag sequence
- Temple Offerings
- Geeky Year
- Increasing Sub Sequence
- K-th element of two sorted Arrays
- 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
- Shortest Common Supersequence
- Swapping pairs make sum equal
- Minimum number of deletions.
- Longest alternating subsequence
- Count of strings that can be formed using a, b and c under given constraints
- Maximum sum Problem
- Minimum indexed character
- High-effort vs. Low-effort
- Longest Repeating Subsequence
- Stickler Thief
- Total number of non-decreasing numbers with n digits
- Find if string is K-Palindrome or not
- Count ways to express N as the sum of 1,3 and 4
- Print Binary Tree levels in sorted order
- LCS of '0' K Repeated String

- Given a linked list, reverse alternate nodes and append at the end
- Reverse a Linked List in groups of given size.
- Quick Sort on Linked List
- 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
- Connect Nodes at Same Level
- Clone a linked list with next and random pointer
- Flattening a Linked List
- 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
- Find the number of islands
- Get minimum element from stack
- Serialize and Deserialize a Binary Tree
- Circular tour
- Wildcard Pattern Matching
- Make Binary Tree From Linked List
- Extreme nodes in alternate order
- Clone a Binary Tree
- Remove loop in Linked List
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Max length chain
- Minimum Spanning Tree
- Interleaved Strings
- Box Stacking
- Minimum Swaps to Sort
- Strongly Connected Components (Kosaraju's Algo)
- 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
- Smallest range in K lists
- k-th smallest element in BST
- Polynomial Addition
- Euler Circuit in a Directed Graph
- Euler circuit and Path
- Merge Sort on Doubly Linked List
- Binary Tree to CDLL
- Find a pair with given target in BST
- Occurences of 2 as a digit
- Construct expression tree
- Foldable Binary Tree
- Leftmost and rightmost nodes of binary tree
- Construct tree from Inorder and LevelOrder
- Pairs violating BST property
- Leaves to DLL
- Largest Independent Set Problem
- Construct Tree from Preorder Traversal
- Construct a Full Binary Tree
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- C++ Friend function
- C++ Generic sort
- Operations on PriorityQueue
- Maximum sum of Non-adjacent nodes
- Unique BST's
- Unit Area of largest region of 1's
- Sorting Elements of an Array by Frequency
- Longest consecutive subsequence
- Case-specific Sorting of Strings
- Count ways to N'th Stair(Order does not matter)
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Complement
- Excel Sheet | Part - 1
- Maximum Sub Array
- Print Diagonally
- Overlapping Intervals
- Equal Sum
- Next Permutation
- Longest Increasing Subsequence
- Parenthesis Checker
- Longest Common Subsequence
- Count ways to N'th Stair(Order does not matter)
- Egg Dropping Puzzle
- Edit Distance
- Magic Triplets
- Maximum Rectangular Area in a Histogram
- Longest Span with same Sum in two Binary arrays
- Consecutive 1's not allowed
- Count of Subarrays
- Longest Even Length Substring
- Path in Matrix
- Trapping Rain Water
- Case-specific Sorting of Strings
- Rank of Matrix
- Sum of bit differences
- Number following a pattern
- Find Prime numbers in a range
- Stock buy and sell
- Largest Number formed from an Array
- Possible words from Phone digits
- Jumping Numbers
- Modular Exponentiation for large numbers
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Relative Sorting
- Black and White
- Maximum of all subarrays of size k
- Largest square formed in a matrix
- Row with max 1s
- Boolean Matrix Problem
- Sorting Elements of an Array by Frequency
- Design a tiny URL or URL shortener
- Nuts and Bolts Problem
- Rotate a 2D array without using extra space
- 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
- Smallest number on left
- Longest consecutive subsequence
- Stock span problem
- Convert an array to reduced form
- Minimum steps to get desired array
- Subsequence matching
- Handshakes
- Tic-Tac-Toe
- Number to words
- Palindromic Array
- Unique partitions
- Possible groups
- Distributing Balls
- Card Rotation
- Max possible amount
- Cost of Sweets
- Bleak Numbers
- Coin Piles
- Maximum Profit
- Your Social Network
- Next larger element
- X Total Shapes
- Unique BST's
- Distinct Transformations
- Matchsticks game
- Combination Sum
- Combination Sum - Part 2
- Word Break
- Longest Prefix Suffix
- Kth smallest element
- 3 Divisors
- Maximum calorie
- Prime Factors and their Powers
- Longest Common Substring
- Count Palindrome Sub-Strings of a String
- Sonam Bewafa asks questions
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Shortest Source to Destination Path
- Number of Palindromic paths in a Matrix
- Trie | (Insert and Search)
- Knight Walk
- Max absolute difference
- 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
- First non-repeating character in a stream
- Count subsequences of type a^i b^j c^k
- K
^{th}largest element in a stream - Water Overflow
- Zero Sum Subarrays
- Magnet Array Problem
- Smallest distinct window
- Floyd Warshall
- Nearly Sorted Algorithm
- Infix to Postfix
- Geek collects the balls
- Longest Bitonic subsequence
- Little Murph and knots
- Reverse Spiral Form of Matrix
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Perfect Sum Problem
- Array Pair Sum Divisibility Problem
- Top k numbers in a stream
- Page Faults in LRU
- Min cut Square
- Rotten Oranges
- Modify array to maximize sum of adjacent differences
- Sisters and coins
- LCS of three strings
- Two water Jug problem
- Longest Common Prefix in an Array
- Minimum cost to fill given weight in a bag
- Count even length
- Steps by Knight
- In First But Second
- Mail System Design
- Numbers with alternative 1's
- Coins and Game
- Matrix Chain Multiplication
- Maximum bitonic subarray sum
- Maximum Tip Calculator
- Biconnected Graph
- Last two digits of Fibonacci
- Pizza Mania
- Killing Spree
- Fill the Tank
- Make Matrix Beautiful
- Sick Pasha
- The Tiny Miny
- Marks of PCM
- Container with most water
- Save Gotham!
- Buying Vegetables
- Aditya and his building blocks
- Minimum swaps and K together
- Lucky alive person in a circle
- Optimal Strategy For A Game

- QuickSort on Doubly Linked List
- Reorder List
- Binary Tree to DLL
- Partition array to K subsets
- Alien Dictionary
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Number of Turns in Binary Tree
- Solve the Sudoku
- Minimum Points To Reach Destination
- Minimum sum partition
- Head to Tail ordering
- Find sum of different corresponding bits for all pairs
- Return two prime numbers
- A Simple Fraction
- Ugly Numbers
- Largest rectangle of 1’s with swapping of columns allowed
- Path of greater than equal to k length
- Word Break - Part 2
- Minimum Cost Path
- N-Queen Problem
- Solve the Sudoku
- Find median in a stream
- Travelling Salesman Problem
- Max Circular Subarray Sum
- Distinct palindromic substrings
- Longest Zig-Zag Sub Sequence
- Similar expressions
- Convert to Strictly increasing array
- Phone directory
- Count the subarrays having product less than k
- Bike Racing
- Adventure in a Maze
- Doctor Strange
- Minimum number to make median X