- Power of 2
- Rotate Array
- Number of paths
- Count total set bits
- Number is sparse or not
- Bit Difference
- Immediate Smaller Element
- k largest elements
- Sum of Digits Divisibility
- Reverse array in groups
- The XOR Gate
- Longest Consecutive 1's
- Minimize the sum of product
- Convert floating point to natural number
- Check if two arrays are equal or not
- Find first set bit
- Transpose of Matrix
- First element to occur k times
- Check whether K-th bit is set or not
- Rotate Bits
- Print first n Fibonacci Numbers
- Odd to Even
- Print Matrix in snake Pattern
- Minimum Product of k Integers
- Gray Code
- Prime String
- Height of Heap
- Alternate Leaf Nodes Sum
- Print Linked List elements
- Count nodes of linked list
- Node at a given index in linked list
- Power of Four
- Delete node in Doubly Linked List
- Size of Binary Tree
- Inorder Traversal
- Bubble Sort
- Count Leaves in Binary Tree
- Selection Sort
- Height of Binary Tree
- Finding middle element in a linked list
- Circular Linked List
- Postorder Traversal
- Square root
- Insert a node in Doubly linked list
- Binary Search
- Remove duplicate elements from sorted Array
- Print all possible strings
- Add two fractions
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Largest product
- Minimize string value(Dumped problem)
- Third largest element
- Convert to Roman No
- Preorder Traversal
- Implement strstr
- Middle Pattern
- Search a node in BST
- Equal Sum and XOR
- Smallest divisible number
- Remainder with 7
- Implement Atoi
- Find Number of Numbers
- Minimum distance between two numbers
- Find triplets with zero sum
- Operating an array
- Linked List Insertion
- Linked List Length Even or Odd?
- Identical Linked Lists
- Modular Node
- Maximum in Struct Array
- Triplet Family
- Sum of Binary Tree
- longest substring containing '1'
- Count Non-Leaf Nodes in Tree
- Strongest Neighbour
- Array insert at end
- Operations on Queue

Name

harshitsidhwa

Rank in Institute

#10

Courses Attended

Campus Ambassador

Other Profile Link

Overall Coding Score: 808

Monthly Coding Score: 0

Weekly Coding Score: 0

- Frequencies of Limited Range Array Elements
- Anagram
- Number of Unique Paths
- Wave Array
- Print Pattern
- Minimum number of Coins
- Reverse words in a given string
- Activity Selection
- Sort an array of 0s, 1s and 2s
- Count distinct pairs with difference k
- N meetings in one room
- Leaders in an array
- Swap all odd and even bits
- Triplet Sum in Array
- Largest number with given sum
- Equilibrium point
- Flood fill Algorithm
- Find all pairs with a given sum
- Check if frequencies can be equal
- Shortest distance in infinite tree
- Numbers with same first and last digit
- Fractional Knapsack
- Evaluation of Postfix Expression
- Merge two binary Max heaps
- Find the closest prime number to a given number
- Sort by Absolute Difference
- Maximum occured integer
- Geek and its Colored Strings
- Sum of Lengths of Non-Overlapping SubArrays
- Chocolate Station
- GeeksforGeeks New System
- The Mighty Divisible Number
- Reorganize The Array
- Winner of an election
- Print Binary Tree levels in sorted order
- SPP - K
^{th}largest and smallest - Separate chaining in Hashing
- Stack Operations
- Removing consecutive duplicates
- Removing consecutive duplicates - 2
- Minimum adjacent difference in a circular array
- Kth Smallest Difference
- K Sum
- XOR Pair
- Average of String
- Closest friends!
- Pairing the brackets
- Reverse a linked list
- Rotate a Linked List
- Pairwise swap elements of a linked list
- Add two numbers represented by linked lists
- linked list of strings forms a palindrome
- Compare two linked lists
- Detect Loop in linked list
- K distance from root
- Diameter of Binary Tree
- Heap Sort
- Nth node from end of linked list
- Left View of Binary Tree
- Delete Middle of Linked List
- Merge two sorted linked lists
- Sum Tree
- Decimal Equivalent of Binary Linked List
- Find Transition Point
- Queue using two Stacks
- Remove duplicate element from sorted Linked List
- Level order traversal in spiral form
- DFS of Graph
- Insert a node in a BST
- BFS of graph
- Lowest Common Ancestor in a Binary Tree
- Determine if Two Trees are Identical
- Print all nodes that don't have sibling
- Postorder traversal from given Inorder and Preorder traversals
- Lowest Common Ancestor in a BST
- Max sum path in two arrays
- Run Length Encoding
- Largest subarray of 0's and 1's
- Largest subarray with 0 sum
- Minimum Depth of a Binary Tree
- Remove duplicates in small prime array
- Odd even level difference
- Almost Prime Numbers
- Binary Tree to BST
- K-Palindrome
- Find nth element of spiral matrix
- Max sum in the configuration
- Equilibrium index of an array
- Remove every k'th node
- Leaf at same level
- Is Binary Tree Heap
- Match specific pattern
- Validate an IP Address
- Find Maximum value
- Multiply two linked lists
- Distinct occurrences
- Sorted subsequence of size 3
- Josephus problem
- You and your books
- Expression Tree
- Points in Straight Line
- Maximum Difference
- Check if Linked List is Palindrome
- Max distance between same elements
- Print matrix in diagonal pattern
- Longest Consecutive Subsequence
- Repetition of k length substring
- Find perimeter of shapes
- Generate Grey Code Sequences
- Delete a Node in Single Linked List
- Kth largest element in BST
- Find duplicates in an array
- Minimum four sum subsequence
- Count distinct elements in every window
- Check if two strings are k-anagrams or not
- Max Level Sum in Binary Tree
- Special Stack
- Root to leaf paths sum
- Three way partitioning
- Sort a stack
- String Modification
- Longest consecutive sequence in Binary tree
- Print Common Nodes in BST
- Level order traversal
- Peak element
- Inorder Successor in BST
- Delete nodes greater than k
- Disjoint set (Union-Find)
- Ancestors in Binary Tree
- Root to Leaf Paths
- Linked List that is Sorted Alternatingly
- Symmetric Tree
- Merge Lists Alternatingly
- Arrange Consonants and Vowels
- Huffman Decoding
- Count Pairs whose sum is equal to X
- Insert in Sorted way in a Sorted DLL
- Diagonal Sum In Binary Tree
- Find length of Loop
- Deletion and Reverse in Linked List
- K-Nearest Neighbours
- Change of Key in BST
- Median of BST
- Normal BST to Balanced BST
- Inorder Successor in Tree
- Vertical Width of a Binary Tree
- Mother Vertex
- Level them All!
- Strange Median!

- Coin Change
- Kadane's Algorithm
- Maximum Sub Array
- Maximum Index
- Longest Common Subsequence
- Egg Dropping Puzzle
- Edit Distance
- Maximum Rectangular Area in a Histogram
- Trapping Rain Water
- Minimum Platforms
- Stock buy and sell
- Modular Exponentiation for large numbers
- Special Keyboard
- Preorder to Postorder
- Maximum Sum Subsequence of length k
- Maximum XOR subset
- Circle of strings
- Next larger element
- Total Decoding Messages
- Rotate and delete
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Shortest Source to Destination Path
- Trie | (Insert and Search)
- Knight Walk
- Find all four sum numbers
- Word Boggle
- Print leaf nodes from preorder traversal of BST
- Find whether path exist
- Unit Area of largest region of 1's
- First non-repeating character in a stream
- K
^{th}largest element in a stream - Water Overflow
- Infix to Postfix
- Smallest Positive missing number
- Job Sequencing Problem
- Page Faults in LRU
- Maximum Tip Calculator
- Find the element at given index
- Find the Maximum sum
- Last two digits of Fibonacci
- Longest Sub-Array with Sum K
- SPP - Meld Game
- Closer to sort
- Level of Nodes
- Possible paths between 2 vertices
- K Most occurring elements
- Maximum Product of Increasing Subsequence of Size 3
- Match The Pattern
- Smaller on Right
- Reverse a Linked List in groups of given size.
- Check for BST
- Bottom View of Binary Tree
- Intersection Point in Y Shapped Linked Lists
- Add all greater values to every node in a BST
- Connect Nodes at Same Level
- 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
- Range Minimum Query
- The Celebrity Problem
- Topological sort
- Merge K sorted linked lists
- Find the number of islands
- Circular tour
- Wildcard Pattern Matching
- Generate IP Addresses
- Extreme nodes in alternate order
- Kth element in Matrix
- Remove loop in Linked List
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Max length chain
- Minimum Spanning Tree
- Interleaved Strings
- Sum of permutations
- 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
- Number of root to leaf paths
- Find the Closest Element in BST
- Pots of Gold Game
- 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
- Duplicate subtree in Binary Tree
- Top View of Binary Tree
- Smallest range in K lists
- k-th smallest element in BST
- Polynomial Addition
- Maximum path sum from any node
- Leaves to DLL
- Largest Independent Set Problem
- Right Sibling in Binary Tree
- Duplicate Subtrees
- Count Number of SubTrees having given Sum
- Number of Trees in a Forest
- Path Count in Directed Graph
- Add two numbers represented by Linked List
- Break and Join
- Implementing Floor in BST
- Implementing Ceil in BST

Published Count(53)

- Elements before which no element is bigger
- Count Palindrome Sub-Strings of a String
- Minimum Cost Path
- Check if a string is repetition of its substring of k-length
- Sum of elements between k1'th and k2'th smallest elements
- Circular Prime Number
- Min sum formed by digits
- Min Subsets with Consecutive Numbers
- Recursively remove all adjacent duplicates
- Special Factorial Number
- Partition a number into two divisible parts
- Replace the Bit
- Kth Prime factor of a Number
- Form a Triangle
- Squares in a Matrix
- Rearrange characters
- Form largest number from digits
- Express as sum of power of natural numbers
- Substrings with similar first and last characters
- Find first set bit
- Stepping Numbers
- Siri and her new College
- Numbers with same first and last digit
- Geek and Coffee Shop
- Temple Offerings
- Geek and its Colored Strings
- Odd to Even
- Sum of Lengths of Non-Overlapping SubArrays
- Equalize the Towers
- Chocolate Station
- Boundary Elements of Matrix
- Min Manipulations to make Strings Anagram
- Geek and its Game of Coins
- Alternate Vowel and Consonant String
- Minimum Product of k Integers
- Maximize âˆ‘arr[i]*i of an Array
- Sum of Digits Prime/Non-Prime
- Geek and his Tricky Series
- Distinct Elements in a Stream
- The Mighty Divisible Number
- Snake Case
- Make Matrix Beautiful
- Reorganize The Array
- Longest Sub-Array with Sum K
- Cosmic Number
- Power of Pow | Even Number
- Power of Pow | Odd Numbers
- Closest Triplet
- Extra Perfect Numbers
- Ease the Array
- Eulerian Path in an Undirected Graph
- Prime String
- Height of Heap

Published Count(70)

- Max distance between same elements
- Longest Palindromic Substring in Linear Time
- Merge k Sorted Arrays
- Bridge Edge in Graph
- Find the missing no in string
- Top View of Binary Tree
- Longest consecutive sequence in Binary tree
- Smallest range in K lists
- Print Common Nodes in BST
- Merge Sort for Linked List
- Linked List Insertion
- Union of Two Linked Lists
- Intersection of Two Linked Lists
- Merge Sort on Doubly Linked List
- Insert in a Sorted List
- Split Singly Linked List Alternatingly
- Ancestors in Binary Tree
- Level of a Node in Binary Tree
- Minimum element in BST
- Root to Leaf Paths
- XOR Linked List
- Linked List that is Sorted Alternatingly
- Linked List Length Even or Odd?
- Symmetric Tree
- Delete Alternate Nodes
- Identical Linked Lists
- Merge Lists Alternatingly
- Arrange Consonants and Vowels
- Huffman Decoding
- Find the Sum of Last N nodes of the Linked List
- Count Pairs whose sum is equal to X
- Insert in Sorted way in a Sorted DLL
- Largest Independent Set Problem
- Find length of Loop
- K-Nearest Neighbours
- Change of Key in BST
- Median of BST
- Normal BST to Balanced BST
- Leaf under budget
- Modular Node
- Number of Turns in Binary Tree
- Linked List Matrix
- Maximum in Struct Array
- Right Sibling in Binary Tree
- Triplet Family
- Sum of Binary Tree
- Height of Spiral Tree
- Construct Tree from Preorder Traversal
- Sum of Leaf Nodes
- Insert in Middle of Linked List
- Sum of Right Leaf Nodes
- Sum of Left Leaf Nodes
- Deletion in a Binary Tree
- Nodes at Odd Levels
- Closest Neighbor in BST
- Brothers From Different Roots
- Sum of the Longest Bloodline of a Tree
- Exchange the Leaf Nodes
- Kth Ancestor in a Tree
- Construct a Full Binary Tree
- Convert Level Order Traversal to BST
- ZigZag Tree Traversal
- Count Number of SubTrees having given Sum
- Count Non-Leaf Nodes in Tree
- Sum of Leaf Nodes at Min Level
- Tilt of Binary Tree
- Largest Sum Contiguous Subarray in Range
- Vertical Width of a Binary Tree
- Path Count in Directed Graph
- Make Matrix Beautiful