Name

Code Chef

Rank in Institute

#1

Courses Attended

Campus Ambassador

Overall Coding Score: 1494

Monthly Coding Score: 223

Weekly Coding Score: 2

- LCM And GCD
- GCD of Array
- Power of 2
- Pythagorean Triplet
- Permutations of a given string
- Missing number in array
- Sum of dependencies in a graph
- Check if the door is open or closed
- Does array represent Heap
- Thief trying to escape
- Fighting the darkness
- Print first n Fibonacci Numbers
- Bubble Sort
- Count Leaves in Binary Tree
- Implement Stack using Linked List
- Binary Search
- Find triplets with zero sum
- Linked List Insertion

- Frequencies of Limited Range Array Elements
- Anagram
- Number of Unique Paths
- Pattern Searching
- Squares in N*N Chessboard
- Trailing zeroes in factorial
- Non Repeating Character
- Sum of Middle Elements of two sorted arrays
- Count Occurences of Anagrams
- Reverse words in a given string
- Count Substrings
- Move all zeroes to end of array
- Remove all duplicates from a given string
- Activity Selection
- Sort an array of 0s, 1s and 2s
- Pairs with difference k
- Maximum value in a bitonic array
- Next greater number set digits
- Element that appears once where every element occurs twice
- Column name from a given column number
- N meetings in one room
- Addition of submatrix
- Maximum sum increasing subsequence
- Array to BST
- Facing the sun
- Max Sum without Adjacents
- Maximum Difference
- Product array puzzle
- Reverse Bits
- Count Smaller elements
- Subarray with given sum
- Count number of hops
- Count pairs with given sum
- Copy Set Bits in Range
- Reach a given score
- Overlapping rectangles
- Search in a matrix
- Number Of Open Doors
- Chinky and diamonds
- Check If two Line segments Intersect
- Count the Zeros
- 0 - 1 Knapsack Problem
- Pangram Strings
- Element appearing once
- Equilibrium point
- Maximize Dot Product
- Count Pairs in an Array
- Min sum formed by digits
- Chocolate Distribution Problem
- Knapsack with Duplicate Items
- Decode the pattern
- Find Nth root of M
- Minimum Operations
- Largest zigzag sequence
- Longest Palindromic Subsequence
- Evaluation of Postfix Expression
- Array Subset of another array
- Karatsuba Algorithm
- Group Anagrams Together
- Second most repeated string in a sequence
- Count all possible paths from top left to bottom right
- Shortest Common Supersequence
- Longest alternating subsequence
- Maximum sum Problem
- Minimum indexed character
- Longest Repeating Subsequence
- Sum of Lengths of Non-Overlapping SubArrays
- Maximum Volume of a Rectangular Box
- Check if array contains contiguous integers with duplicates allowed
- Minimum changes to make all substrings distinct
- Reverse a linked list
- Pairwise swap elements of a linked list
- Detect Loop in linked list
- Remove duplicates from an unsorted linked list
- Reverse a Doubly Linked List
- Insertion Sort
- Quick Sort
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Two Mirror Trees
- Maximum Width of Tree
- Diameter of Binary Tree
- Check for Balanced Tree
- Left View of Binary Tree
- Sum Tree
- Transform to Sum Tree
- Intersection of two sorted Linked lists
- Find Transition Point
- Queue using two Stacks
- Stack using two queues
- Level order traversal in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- BFS of graph
- Lowest Common Ancestor in a Binary Tree
- Determine if Two Trees are Identical
- Run Length Encoding
- Largest subarray with 0 sum
- Odd even level difference
- K-Palindrome
- Max sum in the configuration
- Equilibrium index of an array
- Match specific pattern
- Josephus problem
- Expression Tree
- Points in Straight Line
- Check if Linked List is Palindrome
- Generate Grey Code Sequences
- Max Level Sum in Binary Tree
- Special Stack
- Sort a stack
- Level order traversal
- Peak element
- Index Of an Extra Element
- Merge Sort for Linked List
- Convert Ternary Expression to Binary Tree
- Intersection of Two Linked Lists
- Maximum path sum
- Vertical sum
- Matrix Interchange
- Matrix Interchange - Java
- ArrayList Operation
- Reverse words in a given string

- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Excel Sheet | Part - 1
- Maximum Sub Array
- Print Diagonally
- Overlapping Intervals
- Maximum Index
- Next Permutation
- Longest Increasing Subsequence
- Parenthesis Checker
- Longest Common Subsequence
- Minimum number of jumps
- Count ways to reach the n'th stair
- Count ways to N'th Stair(Order does not matter)
- Egg Dropping Puzzle
- Count of n digit numbers whose sum of digits equals to given sum
- 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
- String formation from substring
- Case-specific Sorting of Strings
- Sum of bit differences
- Subset Sum Problem
- Maximize The Array
- Number of Coins
- Minimum Platforms
- Number following a pattern
- Find Prime numbers in a range
- Stock buy and sell
- Largest Number formed from an Array
- Number of paths in a matrix with k coins
- Possible words from Phone digits
- Jumping Numbers
- Longest Palindrome in a String
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Concatenation of Zig-Zag String in ‘n’ Rows
- 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
- Special Keyboard
- 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
- Largest subsquare surrounded by ‘X’
- Maximum Sum Path in Two Arrays
- 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
- Betting game
- Unique partitions
- Is Binary Number Multiple of 3
- Possible groups
- Maximum Sum Subsequence of length k
- Preorder Traversal and BST
- Card Rotation
- Search Pattern
- Longest Arithmetic Progression
- Max possible amount
- Bleak Numbers
- Maximum Profit
- Build the smallest
- Largest number in K swaps
- Next larger element
- X Total Shapes
- Total Decoding Messages
- Unique BST's
- Distinct Transformations
- Subsets
- Combination Sum
- Combination Sum - Part 2
- Word Break
- Longest Prefix Suffix
- Kth smallest element
- Divisible by 8
- Transform String
- Longest Common Substring
- Count Palindrome Sub-Strings of a String
- Check if a string is repetition of its substring of k-length
- Negative weight cycle
- 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)
- Replace O's with X's
- Partition a number into two divisible parts
- Knight Walk
- Find all four sum numbers
- Substring - Subsequence problem
- Word Boggle
- Print leaf nodes from preorder traversal of BST
- Find whether path exist
- Largest prime factor
- 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
- Stepping Numbers
- Convex Hull
- Count in array
- Water Overflow
- Zero Sum Subarrays
- Smallest window in a string containing all the characters of another string
- Smallest distinct window
- Floyd Warshall
- Nearly Sorted Algorithm
- Infix to Postfix
- Optimal binary search tree
- Smallest Positive missing number
- Longest Bitonic subsequence
- Mobile numeric keypad
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Perfect Sum Problem
- Array Pair Sum Divisibility Problem
- Top k numbers in a stream
- Count possible ways to construct buildings
- Firing employees
- Rotten Oranges
- Mila and strings
- Probability of Knight
- LCS of three strings
- Two water Jug problem
- Longest repeating and non-overlapping substring
- CamelCase Pattern Matching
- Longest Common Prefix in an Array
- Steps by Knight
- In First But Second
- Count of sum of consecutives
- Matrix Chain Multiplication
- Maximum Tip Calculator
- Alternate Vowel and Consonant String
- Next higher number in one swap
- Previous number in one swap
- Print N-bit binary numbers having more 1’s than 0’s
- Next higher palindromic number using the same set of digits
- Pizza Mania
- Count of Palindromic substrings in an Index range
- Lazy Pasha
- Longest subarray with sum divisible by K
- Subarrays with equal 1s and 0s
- Longest Sub-Array with Sum K
- The Tiny Miny
- String Conversion
- Geek and Strings
- Save Gotham!
- Buying Vegetables
- The Painter's Partition Problem
- Maximize the sum of selected numbers from an array to make it empty
- Smaller on Left
- Optimal Strategy For A Game
- 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
- Boundary Traversal of binary tree
- Delete a node from BST
- 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
- The Celebrity Problem
- Topological sort
- Print a Binary Tree in Vertical Order
- Find the number of islands
- Get minimum element from stack
- Serialize and Deserialize a Binary Tree
- Circular tour
- Wildcard Pattern Matching
- Max rectangle
- Make Binary Tree From Linked List
- Check if subtree
- Extreme nodes in alternate order
- Kth element in Matrix
- Clone a Binary Tree
- Remove loop in Linked List
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Max length chain
- Minimum Spanning Tree
- Largest BST
- Interleaved Strings
- LRU Cache
- Box Stacking
- Count Palindromic Subsequences
- Minimum Swaps to Sort
- Rat in a Maze Problem
- Bipartite Graph
- 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
- 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
- Binary Tree to CDLL
- Find a pair with given target in BST
- Occurences of 2 as a digit
- Populate Inorder Successor for all nodes
- Construct expression tree
- K-Sum Paths
- Foldable Binary Tree
- Leftmost and rightmost nodes of binary tree
- Construct tree from Inorder and LevelOrder
- Node at distance
- Mirror of a given node
- Pairs violating BST property
- Maximum path sum from any node
- Leaves to DLL
- Largest Independent Set Problem
- Construct Tree from Preorder Traversal
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- Operations on PriorityQueue
- Maximum sum of Non-adjacent nodes
- Smallest Positive missing number
- Unique BST's
- Unit Area of largest region of 1's
- Subarrays with equal 1s and 0s
- 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)

- Minimum sum partition
- Maximum of minimum for every window size
- Merge Without Extra Space
- Find sum of different corresponding bits for all pairs
- Return two prime numbers
- Largest rectangle of 1’s with swapping of columns allowed
- Longest valid Parentheses
- Word Break - Part 2
- Minimum Cost Path
- N-Queen Problem
- Solve the Sudoku
- Find median in a stream
- Distinct palindromic substrings
- Longest Zig-Zag Sub Sequence
- Phone directory
- Count the subarrays having product less than k
- QuickSort on Doubly Linked List
- Reorder List
- Binary Tree to DLL
- AVL Tree Insertion
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Solve the Sudoku