Name

Rohan Thakur

Rank in Institute

#29

Courses Attended

Campus Ambassador

Overall Coding Score: 562

Monthly Coding Score: 0

Weekly Coding Score: 0

- Lowest Common Ancestor in a BST
- Level order traversal Line by Line
- Print all nodes that don't have sibling
- Sum of leaf nodes in BST
- Root to leaf path sum
- Determine if Two Trees are Identical
- Lowest Common Ancestor in a Binary Tree
- Insert a node in a BST
- Reverse Level Order Traversal
- Level order traversal in spiral form
- Remove duplicate element from sorted Linked List
- Queue using two Stacks
- Implement two stacks in an array
- Symmetric Tree
- Print BST elements in given range
- Level of a Node in Binary Tree
- Minimum Depth of a Binary Tree
- Odd even level difference
- Binary Tree to BST
- Ancestors in Binary Tree
- Index Of an Extra Element
- Peak element
- Check if Linked List is Palindrome
- Kth largest element in BST
- Count distinct elements in every window
- Special Stack
- Root to leaf paths sum
- Mirror Tree
- Reverse a linked list
- Occurence of an integer in a Linked List
- Pairwise swap elements of a linked list
- Given a linked list of 0s, 1s and 2s, sort it.
- Sorted insert for circular linked list
- Split a Circular Linked List into two halves
- Reverse a Doubly Linked List
- Check if two Nodes are Cousins
- Sum of the Longest Bloodline of a Tree
- Sum of Left Leaf Nodes
- Sum of Right Leaf Nodes
- Quick Sort
- Right View of Binary Tree
- K distance from root
- Decimal Equivalent of Binary Linked List
- Sum of Leaf Nodes
- Sum Tree
- Construct Tree from Inorder & Preorder
- Merge two sorted linked lists
- Delete Middle of Linked List
- Left View of Binary Tree
- Check for Balanced Tree
- Diameter of Binary Tree
- Check if Tree is Isomorphic
- Find length of Loop
- Maximum Width of Tree
- Two Mirror Trees
- Frequencies of Limited Range Array Elements
- Anagram
- Adding One
- Number of Unique Paths
- Wave Array
- Pattern Searching
- Print Pattern
- Rectangles in N*N Board
- Squares in N*N Chessboard
- Palindrome numbers
- Trailing zeroes in factorial
- Non Repeating Character
- a^b(Set 2)
- First Repeating Element
- Isomorphic Strings
- Move all zeroes to end of array
- Sort an array of 0s, 1s and 2s
- Two numbers with sum closest to zero
- Maximum value in a bitonic array
- Finding Position
- Element that appears once where every element occurs twice
- Longest Distinct characters in string
- Count distinct pairs with difference k
- Key Pair
- Maximum Difference
- Swap all odd and even bits
- Segregate 0s and 1s
- Triplet Sum in Array
- Minimum element in a sorted and rotated array
- Valid Substring
- Power of Numbers
- Perfect Numbers
- Chocolate Distribution Problem
- Largest zigzag sequence
- Excel Sheet | Part - 2
- Longest Palindromic Subsequence
- Recursive sequence
- Subarrays with given sum
- Count all possible paths from top left to bottom right
- Find number of times a string occurs as a subsequence
- Longest Repeating Subsequence

- Binary Tree to CDLL
- Find a pair with given target in BST
- k-th smallest element in BST
- Top View of Binary Tree
- K-Sum Paths
- Count Number of SubTrees having given Sum
- Flattening a Linked List
- 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
- Connect Nodes at Same Level
- Length of longest palindrome in linked list
- Diagonal Traversal of Binary Tree
- Boundary Traversal of binary tree
- Delete a node from BST
- Maximum difference between node and its ancestor
- Print a Binary Tree in Vertical Order
- Merge K sorted linked lists
- Max rectangle
- Make Binary Tree From Linked List
- Check if subtree
- Find the Closest Element in BST
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Sum Of Prime
- Excel Sheet | Part - 1
- Equal Sum
- Next Permutation
- Longest Increasing Subsequence
- Parenthesis Checker
- Longest Common Subsequence
- Count ways to reach the n'th stair
- Egg Dropping Puzzle
- Edit Distance
- nCr
- Maximum Rectangular Area in a Histogram
- Longest Span with same Sum in two Binary arrays
- Consecutive 1's not allowed
- Path in Matrix
- Trapping Rain Water
- Count Numbers in Range
- Sum of bit differences
- Find Prime numbers in a range
- Largest Number formed from an Array
- Possible words from Phone digits
- Jumping Numbers
- Modular Exponentiation for large numbers
- Row with max 1s
- Boolean Matrix Problem
- Sorting Elements of an Array by Frequency
- Form a palindrome
- Preorder to Postorder
- Length of the longest substring
- Stock span problem
- Palindromic Array
- Is Binary Number Multiple of 3
- Bleak Numbers
- Maximum Profit
- Largest number in K swaps
- Next larger element
- Composite and Prime
- Unique BST's
- Combination Sum
- Longest Prefix Suffix
- Kth smallest element
- Sum of Subarrays
- Longest Common Substring
- Largest prime factor
- Count subsequences of type a^i b^j c^k
- Infix to Postfix
- Longest Bitonic subsequence
- Median In a Row-Wise sorted Matrix
- Matrix Chain Multiplication