- Count nodes of linked list
- Node at a given index in linked list
- Size of Binary Tree
- Inorder Traversal
- 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
- Binary Search
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Preorder Traversal
- Implement strstr
- Implement Atoi
- Minimum element in BST
- Linked List Length Even or Odd?
- Delete Alternate Nodes
- Identical Linked Lists
- Find the Sum of Last N nodes of the Linked List
- Queue Reversal
- Insert in Middle of Linked List
- Sort and Reverse Vector
- Queue Push & Pop
- Check if a string is Isogram or not
- Binary String
- Consecutive elements
- LCM And GCD
- Repetitive Addition Of Digits
- Power of 2
- Pythagorean Triplet
- Nth Fibonacci Number
- Majority Element
- Rotate Array
- Permutations of a given string
- Missing number in array
- Number of paths
- Count total set bits
- Number is sparse or not
- Bit Difference
- Greater on right side
- Immediate Smaller Element
- Binary Array Sorting
- Convert array into Zig-Zag fashion
- Remove character
- Maximum repeating number
- k largest elements
- Minimum difference pair
- Check if a number is power of another number
- Find position of set bit
- Maximum money
- Ways To Tile A Floor
- Generate Binary Numbers
- Find the Odd Occurence
- Rotating an Array
- Rotate by 90 degree
- Set Bits
- Subset Sums
- Longest Consecutive 1's
- Minimize the sum of product
- Permutations in array
- Sum of dependencies in a graph
- Sort in specific order
- Check if two arrays are equal or not
- Check if string is rotated by two places
- Find first set bit
- Check for subsequence
- Find first repeated character
- Geek and Coffee Shop
- Does array represent Heap
- Find the element that appears once in sorted array
- Transpose of Matrix
- First element to occur k times
- Check whether K-th bit is set or not
- Uncommon characters
- Sum of numbers in string
- Rotate Bits
- Sorted matrix
- Rightmost different bit
- Check set bits
- Set kth bit
- Twice counter
- Shuffle integers
- Elements in the Range
- Count triplets with sum smaller than X
- Total number of Strings
- Print Matrix in snake Pattern
- Sort String
- Ishaan's Internship
- Ishaan Loves Chocolates
- How Many X's?
- Tower of Hanoi

Name

Bicky

Institution

Rank in Institute

#11

Courses Attended

Campus Ambassador

Overall Coding Score: 1493

Monthly Coding Score: 96

Weekly Coding Score: 0

- Reverse 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
- Insertion Sort
- Merge 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
- Heap Sort
- Nth node from end of linked list
- Left View of Binary Tree
- Delete Middle of Linked List
- Merge two sorted linked lists
- Find Transition Point
- 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
- Print all nodes that don't have sibling
- Absolute List Sorting
- Lowest Common Ancestor in a BST
- Implement two stacks in an array
- Largest subarray of 0's and 1's
- Print BST elements in given range
- Largest subarray with 0 sum
- Minimum Depth of a Binary Tree
- Odd even level difference
- Binary Tree to BST
- K-Palindrome
- Max sum in the configuration
- Equilibrium index of an array
- Is Binary Tree Heap
- Match specific pattern
- Distinct occurrences
- Josephus problem
- You and your books
- Expression Tree
- Check if Linked List is Palindrome
- Max distance between same elements
- Longest Consecutive Subsequence
- Check whether BST contains Dead End
- Kth largest element in BST
- Find duplicates in an array
- 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
- Sort a stack
- Print Common Nodes in BST
- Peak element
- Inorder Successor in BST
- Delete nodes greater than k
- Index Of an Extra Element
- Level of a Node in Binary Tree
- Sum of leaf nodes in BST
- Maximum path sum
- Counting Sort
- XOR Linked List
- Reverse a string using Stack
- Full binary tree
- Symmetric Tree
- Huffman Decoding
- Huffman Decoding-1
- Vertical sum
- Count Pairs whose sum is equal to X
- Insert in Sorted way in a Sorted DLL
- Check if Tree is Isomorphic
- Predecessor and Successor
- Maximum Node Level
- Children Sum Parent
- Diagonal Sum In Binary Tree
- Find length of Loop
- Change of Key in BST
- Median of BST
- Linked List Matrix
- Reverse First K elements of Queue
- Remove Half Nodes
- Sum of Leaf Nodes
- Tilt of Binary Tree
- Delete middle element of a stack
- Learn to Comment
- Learning to be precise
- While loop- printTable
- Learning Macros
- Matrix Interchange
- Predict the Column
- Xoring and Clearing
- Consonants and Vowels check
- Even Subsets
- Magic in CPP
- Learning Structs
- Delete Array
- Sum of Big Integers
- BigInteger Multiply
- Find the Frequency
- Back to Front
- Pair Sum in Vector
- Student of the Year
- Multimap Operations
- Pairwise swap of nodes in LinkeList
- Mother Vertex
- Print adjacency list
- Subarray with 0 sum
- Winner of an election
- Subarray range with given sum
- Minimum indexed character
- Pangram Checking
- Minimum indexed character
- Anagram
- Number of Unique Paths
- Print Pattern
- Search in a Rotated Array
- Rectangles in N*N Board
- Squares in N*N Chessboard
- Maximize Toys
- Non Repeating Character
- Minimum number of Coins
- Sum of Middle Elements of two sorted arrays
- Good Pairs
- Count Occurences of Anagrams
- Reverse words in a given string
- Move all zeroes to end of array
- Remove all duplicates from a given string
- Activity Selection
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Maximum value in a bitonic array
- Finding Position
- Segregate even and odd nodes in a Linked List
- Element that appears once where every element occurs twice
- Longest Distinct characters in string
- Sum of Query I
- N meetings in one room
- Remove Duplicates
- Addition of submatrix
- Maximum sum increasing subsequence
- Array to BST
- Facing the sun
- Maximum Difference
- Add Binary Strings
- Product array puzzle
- Reverse Bits
- Swap bits
- Reach the Nth point
- Subarray with given sum
- Adjacents are not allowed
- Leaders in an array
- Swap all odd and even bits
- Count number of hops
- Count pairs with given sum
- Reach a given score
- Search in a matrix
- Chinky and diamonds
- Shop in Candy Store
- Largest number possible
- Generate binary string
- Missing element of AP
- Count the Zeros
- Skip the work
- Valid Substring
- Count the Reversals
- Number of ways to find two numbers
- Maximize The Cut Segments
- Lexicographically previous permutation
- Smallest number subset
- Permutations and Sum
- Number of distinct subsequences
- Game of Death in a circle
- Final Destination
- Left out candies
- Ordering of strings
- Raju and coins
- Permutation with Spaces
- Element appearing once
- Equilibrium point
- Floor in a Sorted Array
- Buildings receiving sunlight
- Letter Writer
- Finding the numbers
- Sort by Set Bit Count
- Lucas Number
- Pairs with specific difference
- Count Pairs in an Array
- Min sum formed by digits
- Chocolate Distribution Problem
- Exit Point in a Matrix
- Maximum Sum Bitonic Subsequence
- 1[0]1 Pattern Count
- Knapsack with Duplicate Items
- Let's Play!!!
- Reverse Coding
- Flood fill Algorithm
- Longest K unique characters substring
- Roman Number to Integer
- Maximum no of 1's row
- Drive the car
- Friends Pairing Problem
- Gold Mine Problem
- Find largest word in dictionary
- Love For The Twins
- Sum of all substrings of a number
- Recaman’s sequence
- Minimum Operations
- Find all pairs with a given sum
- Check if frequencies can be equal
- Largest zigzag sequence
- Excel Sheet | Part - 2
- Find the string in grid
- Largest Fibonacci Subsequence
- Increasing Sub Sequence
- Longest Palindromic Subsequence
- K-th element of two sorted Arrays
- Evaluation of Postfix Expression
- Common elements
- Recursive sequence
- Rod Cutting
- Transitive closure of a Graph
- Array Subset of another array
- Karatsuba Algorithm
- Count the paths
- First negative integer in every window of size k
- Sum of product of all pairs
- Paths to reach origin
- Get Minimum Squares
- Rotate matrix elements clockwise
- Nth catalan number
- Find Pair Given Difference
- Count all possible paths from top left to bottom right
- Minimum Deletions
- Shortest Common Supersequence
- Assign Mice Holes
- Painting the Fence
- Number of Groups
- Swapping pairs make sum equal
- Count the number of ways to tile the floor of size n x m using 1 x m size tiles
- Minimum insertions to sort an array
- Minimum number of deletions and insertions.
- Minimum number of deletions to make a sorted sequence
- Minimum steps to minimize n as per given condition
- Minimum number of deletions.
- Longest alternating subsequence
- Ways to sum to N
- Subset with sum divisible by m
- Count of strings that can be formed using a, b and c under given constraints
- Longest subsequence-1
- Maximum sum Problem
- Minimum indexed character
- Find number of times a string occurs as a subsequence
- Minimum Cost To Make Two Strings Identical
- High-effort vs. Low-effort
- Longest Repeating Subsequence
- Stickler Thief
- Total number of non-decreasing numbers with n digits
- Geek and its Colored Strings
- Boundary Elements of Matrix
- Special Numbers
- Required Rooms
- Set all the bits in given range of a number
- Next Happy Number
- Find if string is K-Palindrome or not
- Longest common prefix
- Pairs which are Divisible by 4
- Find winner of the Game of Nim
- Maximum distinct elements after removing K elements
- Maximum difference of zeros and ones in binary string
- Arya and The Great War
- Form a number divisible by 3 using array digits
- Count ways to express N as the sum of 1,3 and 4
- C++ Matrix Rotation by 180 degree
- Ishaan and Sticks
- Print binomial expansion series
- Minimum changes to make all substrings distinct
- Smallest number with sum of digits as N and divisible by 10^N
- Eulerian Path in an Undirected Graph
- Minimal moves to form a string
- Print adjacency list

- Reverse a Linked List in groups of given size.
- Count BST nodes that lie in a given range
- Check for BST
- 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
- 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
- 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
- Wildcard Pattern Matching
- Generate IP Addresses
- Kth element in Matrix
- Remove loop in Linked List
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Max length chain
- Minimum Spanning Tree
- Largest BST
- Interleaved Strings
- Box Stacking
- Count Palindromic Subsequences
- Minimum Swaps to Sort
- Strongly Connected Components (Kosaraju's Algo)
- Find the Closest Element in BST
- Pots of Gold Game
- Merge k Sorted Arrays
- Length of longest palindrome in linked list
- Top View of Binary Tree
- k-th smallest element in BST
- Euler circuit and Path
- Merge Sort on Doubly Linked List
- Binary Tree to CDLL
- Find a pair with given target in BST
- Leaves to DLL
- Count Number of SubTrees having given Sum
- Path Count in Directed Graph
- C++ Generic sort
- Trapping Rain Water
- Unique BST's
- Subarrays with equal 1s and 0s
- Sorting Elements of an Array by Frequency
- Longest consecutive subsequence
- Count ways to N'th Stair(Order does not matter)
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Rank The Permutations
- Excel Sheet | Part - 1
- Print Diagonally
- Overlapping Intervals
- Maximum Index
- Next Permutation
- Longest Increasing Subsequence
- Parenthesis Checker
- Longest Common Subsequence
- Minimum number of jumps
- Count ways to N'th Stair(Order does not matter)
- Egg Dropping Puzzle
- Edit Distance
- nCr
- Min Coin
- Count of Subarrays
- Path in Matrix
- Trapping Rain Water
- Case-specific Sorting of Strings
- Subset Sum Problem
- Factorials of large numbers
- Number of Coins
- Minimum Platforms
- Number following a pattern
- Stock buy and sell
- Largest Number formed from an Array
- Number of paths in a matrix with k coins
- Longest Palindrome in a String
- Rearrange Array Alternately
- Relative Sorting
- Largest square formed in a matrix
- Boolean Matrix Problem
- Sorting Elements of an Array by Frequency
- Special Keyboard
- Number of ways
- Form a palindrome
- Inversion of array
- Longest consecutive subsequence
- Stock span problem
- Convert an array to reduced form
- Palindromic Array
- Unique partitions
- Max possible amount
- Number of pairs
- Coin Piles
- Maximum Profit
- Circle of strings
- Queries on Strings
- Special Matrix
- Minimize the heights
- Next larger element
- Total Decoding Messages
- Unique BST's
- Distinct Transformations
- Subsets
- Combination Sum
- Combination Sum - Part 2
- Word Break
- Kth smallest element
- Longest Common Substring
- Count Palindrome Sub-Strings of a String
- Negative weight cycle
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Shortest Source to Destination Path
- Number of Palindromic paths in a Matrix
- Replace O's with X's
- Find all four sum numbers
- Word Boggle
- Is Sudoku Valid
- Find whether path exist
- Unit Area of largest region of 1's
- Rearrange characters
- Count subsequences of type a^i b^j c^k
- K
^{th}largest element in a stream - 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
- Geek collects the balls
- Largest Sum Subarray of Size at least K
- Smallest Positive missing number
- Longest Bitonic subsequence
- Reverse Spiral Form of Matrix
- Pyramid form
- Maximum Intervals Overlap
- Perfect Sum Problem
- Array Pair Sum Divisibility Problem
- Page Faults in LRU
- N Digit numbers with digits in increasing order
- Rotten Oranges
- Modify array to maximize sum of adjacent differences
- Probability of Knight
- LCS of three strings
- Longest Common Prefix in an Array
- Minimum cost to fill given weight in a bag
- Median In a Row-Wise sorted Matrix
- In First But Second
- Brackets in Matrix Chain Multiplication
- Matrix Chain Multiplication
- Maximum bitonic subarray sum
- Maximum Tip Calculator
- Print N-bit binary numbers having more 1’s than 0’s
- Pizza Mania
- Number of subarrays with maximum values in given range
- Count of Palindromic substrings in an Index range
- Longest subarray with sum divisible by K
- Letters Collection
- Big Numbers Series
- The Painter's Partition Problem
- Minimum swaps and K together
- Rat Maze With Multiple Jumps
- Optimal Strategy For A Game

- Binary Tree to DLL
- Alien Dictionary
- Fixing Two nodes of a BST
- Solve the Sudoku
- Minimum sum partition
- Merge Without Extra Space
- Ugly Numbers
- Word Break - Part 2
- N-Queen Problem
- Solve the Sudoku
- Strongly connected component (Tarjans's Algo)
- Find median in a stream
- Distinct palindromic substrings
- Longest Zig-Zag Sub Sequence
- Phone directory