Name

Kunal Kumar

Institution

Rank in Institute

#3

Courses Attended

Overall Coding Score: 682

Monthly Coding Score: 0

Weekly Coding Score: 0

- Count nodes of linked list
- Node at a given index in linked list
- Inorder Traversal
- Bubble Sort
- Height of Binary Tree
- Finding middle element in a linked list
- Postorder Traversal
- Implement Stack using Linked List
- Implement stack using array
- Implement Queue using array
- Square root
- Preorder Traversal
- Implement strstr
- Find triplets with zero sum
- Linked List Insertion
- Linked List Length Even or Odd?
- Delete Alternate Nodes
- Identical Linked Lists
- Who has the majority?
- Strongest Neighbour
- Array insert at index
- Array insert at end
- Operations on Stack
- Absolute Value
- Convert Celsius To Fahrenheit
- Rotate Array
- Search an Element in an array
- Searching an element in a sorted array
- Majority Element
- Left Index
- Binary Array Sorting
- Count possible triangles
- Adding two matrices
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Transpose of Matrix
- Rotate by 90 degree
- Check if a string is Isogram or not
- Binary String
- Check if string is rotated by two places
- Check if strings are rotations of each other or not
- Maximum Occuring Character
- Repeating Character - First Appearance Leftmost
- Sum of Digits of a Number
- Power Using Recursion
- Fibonacci Using Recursion
- Addition Under Modulo
- Multiplication Under Modulo
- Maximum Integer Value
- Check if two arrays are equal or not
- Keypad typing
- First element to occur k times
- Union of two arrays
- Intersection of two arrays
- Uncommon characters
- Sort The Array

- Reverse a linked list
- Rotate 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
- Remove duplicates from an unsorted linked list
- Insertion Sort
- Merge Sort
- Quick Sort
- Right View of Binary Tree
- Mirror Tree
- Maximum Width of Tree
- Diameter of Binary Tree
- Check for Balanced Tree
- Nth node from end of linked list
- Left View of Binary Tree
- Merge 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
- DFS of Graph
- BFS of graph
- Lowest Common Ancestor in a Binary Tree
- Determine if Two Trees are Identical
- Implement two stacks in an array
- Level order traversal Line by Line
- Josephus problem
- Check if Linked List is Palindrome
- Delete a Node in Single Linked List
- Three way partitioning
- Level order traversal
- Peak element
- Merge Sort for Linked List
- Counting Sort
- Children Sum Parent
- Find length of Loop
- Reverse First K elements of Queue
- Delete middle element of a stack
- Get min at pop
- Max and Second Max
- Hashing for pair - 1
- Hashing for pair - 2
- Pairwise swap of nodes in LinkeList
- Mother Vertex
- Factorial Of Number
- Digits In Factorial
- GP Term
- Primality Test
- Exactly 3 Divisors
- Mean And Median
- Modular Multiplicative Inverse
- Minimum adjacent difference in a circular array
- Power Of Numbers
- Wave Array
- Frequencies of Limited Range Array Elements
- Leaders in an array
- Count 1's in binary array
- Floor in a Sorted Array
- Minimum Number in a sorted rotated array
- Two Repeated Elements
- Roof Top
- Union of Two Sorted Arrays
- Subarray with given sum
- Intersection of two sorted arrays
- Closet 0s 1s and 2s
- Sort by Absolute Difference
- Triplet Sum in Array
- Print adjacency list
- Spirally traversing a matrix
- Search in a matrix
- Interchanging the rows of a Matrix
- Reversing the columns of a Matrix
- Boundary traversal of matrix
- Exchange matrix columns
- Separate chaining in Hashing
- Naive Pattern Search
- Distinct Pattern Search
- Linear Probing in Hashing
- Quadratic Probing in Hashing
- Count Non-Repeated Elements
- Print Non-Repeated Elements
- Anagram
- Subarray with 0 sum
- Winner of an election
- Subarray range with given sum
- Isomorphic Strings
- Non Repeating Character
- Removing consecutive duplicates
- Removing consecutive duplicates - 2
- Evaluation of Postfix Expression
- Count Total Digits in a Number
- Digital Root
- Numbers containing 1, 2 and 3
- Positive Negative Pair
- Move all zeroes to end of array
- Three Great Candidates
- First Repeating Element

- Reverse a Linked List in groups of given size.
- Delete nodes having greater value on right
- 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
- Construct Binary Tree from Parent Array
- Connect Nodes at Same Level
- Clone a linked list with next and random pointer
- Delete a node from BST
- Maximum difference between node and its ancestor
- The Celebrity Problem
- Print a Binary Tree in Vertical Order
- Merge K sorted linked lists
- Serialize and Deserialize a Binary Tree
- Make Binary Tree From Linked List
- Check if subtree
- Remove loop in Linked List
- LRU Cache
- Max sum subarray by removing at most one element
- Find the Closest Element in BST
- Merge two BST 's
- Merge k Sorted Arrays
- Top View of Binary Tree
- Merge Sort on Doubly Linked List
- Binary Tree to CDLL
- Count More than n/k Occurences
- Foldable Binary Tree
- Node at distance
- Maximum path sum from any node
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- Swap Kth nodes from ends
- Add two numbers represented by Linked List
- Maximum sum of Non-adjacent nodes
- Rabin Karp - Pattern Searching
- Implementing Floor in BST
- Implementing Ceil in BST
- Pair Sum in BST
- Smallest Positive missing number
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Maximum Index
- Trapping Rain Water
- Stock buy and sell
- Kadane's Algorithm
- Number of pairs
- Merge three sorted arrays
- Closer to sort
- Make Matrix Beautiful
- Subarrays with equal 1s and 0s
- Longest consecutive subsequence
- Parenthesis Checker
- Stock span problem
- Infix to Postfix
- Maximum of all subarrays of size k
- Kth largest element
- Kth smallest element
- K Most occurring elements
- Nearly sorted
- Rearrange characters
- Largest number in K swaps
- Black and White
- Combination Sum
- Count ways to reach the n'th stair
- Count ways to N'th Stair(Order does not matter)
- Egg Dropping Puzzle
- Optimal Strategy For A Game
- Longest Increasing Subsequence
- Longest Common Subsequence
- Unique BST's
- Smaller on Right
- Range Sum Queries
- Zero Sum Subarrays
- Kth smallest element
- Minimum number of jumps
- Number of pairs
- Preorder to Postorder
- Sorting Elements of an Array by Frequency
- Relative Sorting
- Rearrange Array Alternately
- Largest Number formed from an Array
- Subset Sum Problem
- Trapping Rain Water

- Binary Tree to DLL
- Fixing Two nodes of a BST
- Pattern Search KMP
- Max Circular Subarray Sum
- Merge Without Extra Space
- Solve the Sudoku
- Minimum Cost Path
- Strongly connected component (Tarjans's Algo)
- Count the subarrays having product less than k
- Median of Two sorted arrays
- Largest Sum Contiguous Subarray in Range