- Count nodes of linked list
- Node at a given index in linked list
- 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
- Implement strstr
- Implement Atoi
- Identical Linked Lists
- Find n/k th node in Linked list
- Insert in Middle of Linked List
- Pythagorean Triplet
- Majority Element
- Permutations of a given string
- Missing number in array
- Number of paths
- Convert array into Zig-Zag fashion
- Number of occurrence
- k largest elements
- Smallest number
- Reverse array in groups
- Set Bits
- Minimize the sum of product
- Find first and last occurrence of x
- Check if two arrays are equal or not
- Check if string is rotated by two places
- Find first repeated character
- Index of first 1 in a sorted array of 0’s and 1’s
- Does array represent Heap
- Find the element that appears once in sorted array
- Thief trying to escape
- Last index of One
- First element to occur k times
- Uncommon characters
- Check set bits
- Sorting Employees
- Twice counter

Name

Anuj Agrawal

Institute

rubrik

Courses Attended

Overall Coding Score: 855

Monthly Coding Score: 0

Weekly Coding Score: 0

- 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
- Add 1 to a number represented as linked list
- Detect Loop in linked list
- Remove duplicates from an unsorted linked list
- Reverse a Doubly Linked List
- K distance from root
- Mirror Tree
- Maximum Width of Tree
- Diameter of Binary Tree
- Check for Balanced 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
- Queue using two Stacks
- Remove duplicate element from sorted Linked List
- Stack using two queues
- Level order traversal in spiral form
- Lowest Common Ancestor in a Binary Tree
- Determine if Two Trees are Identical
- Root to leaf path sum
- Lowest Common Ancestor in a BST
- Binary Heap Operations
- Largest subarray of 0's and 1's
- Largest subarray with 0 sum
- Is Binary Tree Heap
- Josephus problem
- Check if Linked List is Palindrome
- Count distinct elements in every window
- Root to leaf paths sum
- Peak element
- Merge Sort for Linked List
- Union of Two Linked Lists
- Ancestors in Binary Tree
- Level of a Node in Binary Tree
- Root to Leaf Paths
- Maximum path sum
- Merge Lists Alternatingly
- Huffman Decoding-1
- Linked List Matrix
- Rotate doubly Linked List
- Find the Frequency
- Min Heap implementation
- Pairwise swap of nodes in LinkeList
- Anagram
- Number of Unique Paths
- Reverse words in a given string
- Activity Selection
- Remove “b” and “ac” from a given string
- Sort an array of 0s, 1s and 2s
- Segregate even and odd nodes in a Linked List
- Longest Distinct characters in string
- N meetings in one room
- Remove Duplicates
- Maximum sum increasing subsequence
- Subarray with given sum
- Leaders in an array
- Shop in Candy Store
- Largest number possible
- Equilibrium point
- Chocolate Distribution Problem
- Knapsack with Duplicate Items
- Flood fill Algorithm
- Roman Number to Integer
- Find largest word in dictionary
- Minimum Operations
- Find all pairs with a given sum
- Check if frequencies can be equal
- Meta Strings
- K-th element of two sorted Arrays
- Common elements
- Element with left side smaller and right side greater
- Array Subset of another array
- Count the elements
- Second most repeated string in a sequence
- Number of Groups
- Swapping pairs make sum equal
- Count of strings that can be formed using a, b and c under given constraints
- Minimum indexed character
- Stickler Thief
- Remaining String

- Given a linked list, reverse alternate nodes and append at the end
- 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
- 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
- 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
- Vertical Traversal of Binary Tree
- Merge K sorted linked lists
- Find the number of islands
- Get minimum element from stack
- Serialize and Deserialize a Binary Tree
- Circular tour
- Max rectangle
- Make Binary Tree From Linked List
- Check if subtree
- Extreme nodes in alternate order
- Clone a Binary Tree
- Remove loop in Linked List
- Max length chain
- Minimum Spanning Tree
- Interleaved Strings
- LRU Cache
- Box Stacking
- Multiply two strings
- Rat in a Maze Problem
- 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
- k-th smallest element in BST
- Binary Tree to CDLL
- Find a pair with given target in BST
- Occurences of 2 as a digit
- Leftmost and rightmost nodes of binary tree
- Node at distance
- Leaves to DLL
- Construct Tree from Preorder Traversal
- Count Number of SubTrees having given Sum
- Swap Kth nodes from ends
- Unique BST's
- Unit Area of largest region of 1's
- Longest consecutive subsequence
- Count ways to N'th Stair(Order does not matter)
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Sum Of Prime
- Excel Sheet | Part - 1
- Print Diagonally
- Overlapping Intervals
- Arithmetic Progression
- Parenthesis Checker
- Minimum number of jumps
- Count ways to N'th Stair(Order does not matter)
- Egg Dropping Puzzle
- Maximum Rectangular Area in a Histogram
- Consecutive 1's not allowed
- Longest Even Length Substring
- Path in Matrix
- Trapping Rain Water
- Subset Sum Problem
- Maximize The Array
- Minimum Platforms
- Number following a pattern
- Stock buy and sell
- Largest Number formed from an Array
- Longest Palindrome in a String
- Modular Exponentiation for large numbers
- Rearrange Array Alternately
- Relative Sorting
- 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
- Maximum length Bitonic Subarray
- Length of the longest substring
- Longest consecutive subsequence
- Stock span problem
- Handshakes
- Tic-Tac-Toe
- Number to words
- Palindromic Array
- Is Binary Number Multiple of 3
- Number of pairs
- Maximum Profit
- Minimize the heights
- Next larger element
- X Total Shapes
- Total Decoding Messages
- Unique BST's
- Distinct Transformations
- Combination Sum
- Combination Sum - Part 2
- Word Break
- Longest Prefix Suffix
- Kth smallest element
- Longest Common Substring
- Count Palindrome Sub-Strings of a String
- Rotate and delete
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Trie | (Insert and Search)
- Knight Walk
- Find all four sum numbers
- Word Boggle
- Is Sudoku Valid
- Find whether path exist
- 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
- Stepping Numbers
- K
^{th}largest element in a stream - Zero Sum Subarrays
- Smallest window in a string containing all the characters of another string
- Smallest distinct window
- Infix to Postfix
- Geek collects the balls
- Longest Bitonic subsequence
- Mobile numeric keypad
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Word Wrap
- Perfect Sum Problem
- Array Pair Sum Divisibility Problem
- Top k numbers in a stream
- Longest Common Prefix in an Array
- Steps by Knight
- Brackets in Matrix Chain Multiplication
- Matrix Chain Multiplication
- Next higher palindromic number using the same set of digits
- Optimal Strategy For A Game