worldhello
STREAK
91/1477
days
Longest streak/Global longest streak
Institution
Lovely Professional University
1 RankInstitute Rank
Language Used
C++, Python, Java, C
Coding Score
4630
Problem Solved
1304
Contest Rating
__
6 points
Contributor
6 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
0 submissions in current year
SCHOOL (1)
BASIC (88)
EASY (341)
MEDIUM (695)
HARD (179)
- Sorting Elements of an Array by Frequency
- Nearly Sorted Algorithm
- The Conversion To One
- Get the Shadow
- Without Adjacent
- Hierarchical City Links
- Reverse alternate nodes in Link List
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Add Number Linked Lists
- Rearrange a linked list
- Add 1 to a Linked List Number
- Merge 2 sorted linked list in reverse order
- Linked List in Zig-Zag fashion
- Detect Loop in linked list
- Quick Sort on Linked List
- QuickSort on Doubly Linked List
- Count BST nodes that lie in a given range
- Merge Sort
- Quick Sort
- Binary Tree from Inorder and Postorder
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Heap Sort
- Merge two sorted linked lists
- Add all greater values to every node in a BST
- Sum Tree
- Construct Binary Tree from Parent Array
- Connect Nodes of Levels
- Flattening a Linked List
- Diagonal Tree Traversal
- Tree Boundary Traversal
- Reverse alternate levels of a perfect binary tree
- Delete a node from BST
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Maximum difference between node and its ancestor
- Absolute List Sorting
- Two Stacks in an Array
- Binary Heap Operations
- Max sum path in two arrays
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological sort
- Vertical Tree Traversal
- Merge K sorted linked lists
- Find the number of islands
- Find kth element of spiral matrix
- Max sum in the configuration
- Get Min from Stack
- Gas Station
- Wildcard Pattern Matching
- Linked List to Binary Tree
- Generate IP Addresses
- Check if subtree
- Extreme nodes in alternate order
- Kth smallest element in a Matrix
- Is Binary Tree Heap
- Clone a Binary Tree
- Validate an IP Address
- Remove loop in Linked List
- Dijkstra Algorithm
- Minimum Spanning Tree
- Largest BST
- Interleaved Strings
- Sorted subsequence of size 3
- Count Palindromic Subsequences
- Multiply two strings
- Minimum Swaps to Sort
- Implement Atoi
- Maximum Difference
- Palindrome Linked List
- Strongly Connected
- Rat in a Maze Problem - I
- Bipartite Graph
- Max sum subarray by removing at most one element
- Closest in BST
- Pots of Gold Game
- Delete keys in a Linked list
- Merge two BST 's
- Count distinct elements in every window
- Trie | (Delete)
- Merge k Sorted Arrays
- Root to leaf paths sum
- Longest Palindrome in Linked List
- Bridge edge in a graph
- Print Nodes having K leaves
- Find triplets with zero sum
- Sort a stack
- Duplicate Subtree
- Top View of Binary Tree
- k-th Smallest in BST
- Find Common Nodes in two BSTs
- Level order traversal
- Peak element
- Polynomial Addition
- Delete nodes greater than k
- Merge Sort for Linked List
- Union of Two Linked Lists
- Euler circuit and Path
- Binary Tree to CDLL
- Mountain Subarray Problem
- Pair Sum in BST
- Occurences of 2 as a digit
- Complete Binary Tree
- Populate Inorder Successor for all nodes
- Counting elements in two arrays
- K Sum Paths
- Foldable Binary Tree
- Leftmost and rightmost nodes of binary tree
- Construct Tree from Inorder & Preorder
- Count the nodes at distance K from leaf
- Vertical sum
- Isomorphic Trees
- Maximum path sum from any node
- Predecessor and Successor
- Leaves to DLL
- Largest Independent Set Problem
- Children Sum in a Binary Tree
- Diagonal sum in binary tree
- Deletion and Reverse in Circular Linked List
- Duplicate Subtrees
- Construct Tree from Preorder Traversal
- Kth Ancestor in a Tree
- Check if two Nodes are Cousins
- Convert Level Order Traversal to BST
- ZigZag Tree Traversal
- Count Number of SubTrees
- Largest Sum Contiguous Subarray in Range
- Vertical Width of a Binary Tree
- C++ Generic sort
- Coin Change - Minimum number of coins
- Pairwise swap of nodes in Linked List
- Swap Kth nodes from ends
- Add two numbers represented by Linked List
- Maximum sum of Non-adjacent nodes
- Mother Vertex
- Floor in BST
- Ceil in BST
- Pair Sum in BST
- Count set bits
- Maximum AND Value
- Tower Of Hanoi
- Reverse array in groups
- Smallest Positive Missing
- Power Of Numbers
- Maximum occured integer
- Wave Array
- Possible Words From Phone Digits
- Rotate and delete
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Maximum Index
- Stock buy and sell
- Rotate Array
- Kadane's Algorithm
- Majority Element
- Binary Array Sorting
- Count Inversions
- Two Repeated Elements
- Unique BST's
- Union of 2 Sorted Arrays
- Indexes of Subarray Sum
- Count the number of possible triangles
- Triplet Sum in Array
- Number of pairs
- Merge Without Extra Space
- Merge three sorted arrays
- Closer to sort
- Possible paths between 2 vertices
- Level of Nodes
- Make Matrix Beautiful
- Boolean Matrix
- Spirally traversing a matrix
- Search in a sorted Matrix
- Rotate by 90 degree
- Determinant of a Matrix
- Distance of nearest cell having 1
- Unit Area of largest region of 1's
- Subarray with 0 sum
- Subarrays with equal 1s and 0s
- Sort Elements by Decreasing Frequency
- Longest Consecutive Subsequence
- Strings Rotations of Each Other
- Case-specific Sorting of Strings
- Postfix Evaluation
- Stock span problem
- Next Greater Element
- Infix to Postfix
- K Sized Subarray Maximum
- Kth largest element
- Kth smallest element
- Kth largest element in a stream
- K Most occurring elements
- Nearly sorted
- Activity Selection
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Largest number in K swaps
- Rat Maze With Multiple Jumps
- Black and White
- Combination Sum
- Unique Subsets
- M-Coloring Problem
- Minimum Jumps
- Stickler Thief
- Ways to Reach the n'th Stair
- Egg Dropping Puzzle
- Optimal Strategy For A Game
- Minimum number of jumps
- nCr
- Sum of all substrings of a number
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Range Sum Queries
- Range Min Max Queries
- Range GCD Queries
- Number of Unique Paths
- Equal Sum Partition
- Sort according to an Array
- Allocate Minimum Pages
- Preorder to BST
- X Total Shapes
- Zero Sum Subarrays
- Find whether path exist
- Kth Smallest
- Implement Trie
- Nth number made of prime digits
- Shortest Common Supersequence
- Nth Catalan Number
- Rotten Oranges
- Steps by Knight
- Most frequent word in an array of strings
- Count only Repeated
- Camel Case
- Renaming Cities
- Longest Subarray Of Evens And Odds
- Count subsequences of type a^i, b^j, c^k
- Maximize The Cut Segments
- Container With Most Water
- Print Anagrams Together
- Rotate by 90 degree
- Overlapping Intervals
- Word Break
- Stock Buy and Sell – Multiple Transaction Allowed
- Generate Parentheses
- Word Search
- Word Boggle
- Prerequisite Tasks
- 4 Sum - All Quadruples
- Excel Sheet | Part - 1
- Maximum Water Between Two Buildings
- Sort 0s, 1s and 2s
- Complement
- Maximum Sub Array
- Maximum Index
- Sum of Subarrays
- Equal Sum
- Top k numbers in a stream
- Large Factorial
- Longest Span in two Binary Arrays
- Maximize Number of 1's
- Sum of Middle elements of two sorted arrays
- Equivalent Sub-Arrays
- Single Among Doubles in a Sorted
- Consecutive 1's not allowed
- Count Occurences of Anagrams
- Count of Subarrays
- Single Among Doubles
- Pythagorean Triplet
- Happiest Triplet
- Painting the Fence
- Pair Sum Closest to 0
- Search in Rotated Sorted Array
- Smallest number with at least n trailing zeroes in factorial
- Sum of bit differences
- Print Binary Tree levels in sorted order
- Count Full Binary Trees
- Maximum Intervals Overlap
- Maximize The Array
- Form the Largest Number
- Water Collection
- Alternate Vowel and Consonant String
- Add Binary Strings
- Super Primes
- Maximum Product Subarray
- Longest subarray with sum divisible by K
- Row with max 1s
- Max value after m range operation
- Swapping pairs make sum equal
- Column name from a given column number
- Concatenation of Zig-Zag String in n Rows
- Design a tiny URL or URL shortener
- Substrings with K Distinct
- Form a palindrome
- Nuts and Bolts Problem
- Rotate a Matrix
- Numbers with one absolute difference
- Longest Subarray with Sum K
- Transform String
- Count the Reversals
- Cutting Binary String
- Sum of two large numbers
- Max Sum without Adjacents
- Equal 0, 1 and 2
- Factorials of large numbers
- Maximum length Bitonic Subarray
- Reverse each word in a given string
- Find the N-th character
- Length of the longest substring
- Remove leading zeros from an IP address
- The Tiny Miny
- k largest elements
- Magnet Array Problem
- Longest Common Substring
- Smallest distinct window
- Longest substring with distinct characters
- Longest Substring with K Uniques
- Longest Palindrome in a String
- Minimum steps to get desired array
- Valid Expression
- Tic Tac Toe
- Integer to Words
- K-th element of two Arrays
- Arranging the array
- String formation from substring
- Possible groups
- Longest Arithmetic Subsequence
- Triplets with Smaller Sum
- Rod Cutting
- Greater tower sum
- Number of pairs
- Minimum swaps and K together
- Maximize the sum of selected numbers from a sorted array to make it empty
- Smallest Absolute Difference
- LCS of three strings
- Longest Palindromic Subsequence
- Largest Sum Subarray of Size at least K
- Longest Common Increasing Subsequence
- First negative in every window of size k
- Find the number of subarrays having even sum
- Minimum sum
- Not a subset sum
- Build the smallest
- Minimize the Heights II
- Surpasser Count
- First and Last Occurrences
- Reaching the heights
- Next higher palindromic number using the same set of digits
- Smaller on Left
- A difference of values and indexes
- Maximum Product of Increasing Subsequence of Size 3
- Print N-bit binary numbers having more 1s than 0s
- Nine Divisors
- Valid Substring
- Find patterns
- Permutations of a String
- Number following a pattern
- Previous number in one swap
- Substring - Subsequence problem
- Find largest word in dictionary
- Rotate String
- Friends Pairing Problem
- String Subsequence Game
- CamelCase Pattern Matching
- Count divisors of product of array elements
- Lexicographically smallest string
- Subarrays Product Less than K
- Unique Number II
- Bleak Numbers
- Queries for counts of multiples in an array
- Ways to sum to N
- Skip the work
- Max possible amount
- Modular Exponentiation
- Largest prime factor
- 3 Divisors
- Maximum Tip Calculator
- Minimum number of deletions and insertions
- Max Sum Increasing Subsequence
- Minimum cost to fill given weight in a bag
- Coin Change (Count Ways)
- Count numbers with given sum
- Sieve of Eratosthenes
- String Subsequence
- Mobile numeric keypad
- Coin Change (Minimum Coins)
- Dice throw
- Perfect Sum Problem
- Smallest number
- Power Of 2 and Subsequences
- Kth Smallest Factor
- Firing employees
- Shreyansh and his bits
- Count ways to N'th Stair(Order does not matter)
- Subset with sum divisible by k
- Knapsack with Duplicate Items
- nCr
- Number of ways
- Count of sum of consecutives
- Subsets with XOR value
- Maximum path sum in matrix
- Minimum steps to destination
- Special Keyboard
- Partition Equal Subset Sum
- XOR Game
- Longest Bitonic subsequence
- Min Coin
- Get Minimum Squares
- Handshakes
- Count possible ways to construct buildings
- Count distinct pairs with difference k
- Probability of Knight
- Array Pair Sum Divisibility Problem
- Digit multiplier
- Magic Triplets
- Brain Game
- Fill up buckets
- Matchsticks game
- Killing Spree
- Subset Sums
- Unique partitions
- Prime Pair with Target Sum
- N Digit numbers with digits in increasing order
- Count Multiples of Square Numbers
- Fill the Tank
- Akku and Binary Numbers
- Number of paths
- Nth Natural Number
- Knight Walk
- Stepping Numbers
- Path of greater than equal to k length
- Number of paths in a matrix with k coins
- LCM Triplet
- Return two prime numbers
- Sum of Query II
- Find Prime numbers in a range
- Jumping Numbers
- A Game of LCM
- Two water Jug problem
- Count even length
- Fraction to Repeating Decimal
- Grouping Of Numbers
- Find the Safe Position
- Next Permutation
- Missing number in matrix
- Rank The Permutations
- Smaller on Left
- Rotate matrix elements clockwise
- Geek and knots
- Filling Bucket
- Matrix Exponentiation
- Longest Repeating Subsequence
- Longest alternating subsequence
- Composite and Prime
- Decode the string
- Is Sudoku Valid
- Preorder Traversal and BST
- Total Decoding Messages
- Stream First Non-repeating
- Maximum Sub-String after at most K changes
- 2D Hopscotch
- Villain Con
- Possible paths
- Segregate even and odd nodes in a Linked List
- Print leaf nodes from preorder traversal of BST
- Largest square formed in a matrix
- Tricky Subset Problem
- Water Overflow
- Rat Maze With Multiple Jumps
- Kth Largest in a Stream
- Snake and Ladder Problem
- Geek and Strings
- Pairs of Non Coinciding Points
- The Smurfs
- Satisfy the equation
- Product of Primes
- Transitive closure of a Graph
- Replace O's with X's
- nCr mod M | Part 2
- Two odd Occuring
- Find all distinct subset (or subsequence) sums
- Rohan's Love for Matrix
- Check Mirror in N-ary tree
- Special Matrix
- Queries on a Matrix
- Express as sum of power of natural numbers
- Find the string in grid
- Nodes at even distance
- Help a Thief!!!
- Floyd Warshall
- Negative weight cycle
- Flood fill Algorithm
- Shortest Source to Destination Path
- Base Equivalence
- Shortest Path between Cities
- Reverse Spiral Form of Matrix
- Police and Thieves
- Geek and Number String
- Save Your Life
- Hamiltonian Path
- Recursively Remove Adjacent Duplicates
- Number of minimum picks to get 'k' pairs of socks from a drawer
- Spiral Matrix
- Valid Pair Sum
- Dam of Candies
- Transfiguration
- Repeated String Match
- Triplets in Sorted Linked List
- Restrictive Candy Crush
- Help Classmates
- Closest Similar Elements
- Jump Game
- Max Diff Elements and Indexes
- Iterative Inorder
- Triplets with sum with given range
- Preorder traversal (Iterative)
- Iterative Postorder
- Subset Sum Problem
- Longest Palindromic Substring
- Form a palindrome
- All Palindromic Partitions
- Covid Spread
- 3 Sum Closest
- Bellman-Ford
- Player with max score
- Gray Code
- Subarrays with sum K
- Remove BST keys outside given range
- Partition a Linked List around a given value
- Minimum XOR value pair
- Searching an element in a sorted array (Ternary Search)
- Capacity To Ship Packages Within D Days
- Coin Piles
- Rearrange characters
- Remove K Digits
- Substrings of length k with k-1 distinct elements
- Count pairs in array divisible by K
- Number of Provinces
- Prefix match with other strings
- Maximum sum leaf to root path
- Find duplicate rows in a binary matrix
- Single valued subtree
- BST to max heap
- BST to greater sum tree
- Cousins of a given node
- Division without using multiplication, division and mod operator
- Remove all occurences of duplicates in a linked list
- Minimize the Heights I
- Subsets
- Flatten binary tree to linked list
- IPL 2021 - Match Day 2
- Unique Number III
- Course Schedule
- Clone an Undirected Graph
- Target Sum
- Minimum times A has to be repeated such that B is a substring of it
- Overlapping Intervals
- Remove and Reverse
- Cities and Teleporters
- Find Kth permutation
- Maximum number of events that can be attended
- Longest Possible Route in a Matrix with Hurdles
- Find k-th smallest element in given n ranges
- Even Swap
- Reverse a Stack
- Farthest number
- Maximum product subset of an array
- K-th Largest Sum Contiguous Subarray
- Maximum Meetings in One Room
- Enemy
- Max Equal sum of 3 Stacks
- Buy Maximum Stocks
- Concatenate Equal to Target
- Exactly one swap
- Levels Of Game
- Smallest sum contiguous subarray
- Array Removals
- Max Sum without Adjacents 2
- Find shortest safe route in a matrix
- Minimum Cost to cut a board into squares
- Stack Permutations
- Largest subtree sum in a tree
- Expression contains redundant bracket or not
- Assembly Line Scheduling
- Wine Buying and Selling
- Maximum trains for which stoppage can be provided
- Replace every element with the least greater element on its right
- Special Keyboard 2
- Minimum time taken by each job to be completed given by a Directed Acyclic Graph
- LCP
- Minimum Swaps
- Construct Binary Tree from String with bracket representation
- Check if all levels of two trees are anagrams or not
- Number of Distinct Islands
- Shortest Distance in a Binary Maze
- Minimum Multiplications to reach End
- Number Of Enclaves
- Eventual Safe States
- Alex Travelling
- Number Of Islands
- Merging Details
- Number of Ways to Arrive at Destination
- Pattern
- Quick Sort
- Shortest Path in Undirected Graph
- Shortest path in Directed Acyclic Graph
- Sum of Beauty of All Substrings
- Asteroid Collision
- Aggressive Cows
- Hands of Straights
- Lemonade Change
- Minimum Window Substring
- Floor in BST
- GCD Array
- Minimize number of Students to be removed
- Maximum Value
- Shortest Prime Path
- Flattening a Linked List
- Next Greater Element in Circular Array
- Carpet into Box
- Minimum X (xor) A
- Find minimum number of Laptops required
- Geeks And The String
- Find the longest string
- Maximum Profit By Choosing A Subset Of Intervals
- Minimum repeat to make substring
- Paint N Houses
- Max Sum without Adjacents
- Intersection Point in Y Shaped Linked Lists
- BST Downward Traversal
- Length of the longest subarray with positive product
- Count number of free cell
- Maximum Bipartite Matching
- Minimum Days
- Prime List
- Walls Coloring
- Geeks Island
- Apple Sequences
- Connect Nodes at Same Level
- Unique Paths in a Grid
- Valid Compressed String
- Fill the Matrix
- Number of Good Components
- Optimal Array
- Best Node
- Update Queries
- Good Stones
- Maximum Intersecting Lines
- String rp or pr
- Knight in Geekland
- Shy Geek
- Count Special Numbers
- Minimum Steps Required
- Count Cyclic Paths
- Maximum Triplet product
- Second smallest number
- Special Palindrome Substrings
- Maximum Possible Value
- Distinct Difference
- Anagrams in Linked List
- Yet another query problem
- Geek hates too many 1s
- Maximum Length
- Remove the balls
- Unequal Arrays
- Job Sequencing Problem
- Bheem Wants Ladoos
- Prefix Suffix String
- Smaller Sum
- Shortest XY distance in Grid
- BST Maximum Difference
- Nearest smaller tower
- Another Coin Change Problem
- Geek's Village and Wells
- Powerful Integer
- Max Coins
- Good Subtrees
- Subtree In N-ary Tree
- Easy Task
- Add Minimum Characters
- Maximum subset sum
- Palindrome with minimum sum
- Count Total Setbits
- Tree Transformation
- Construct a Full Binary Tree
- Modify Linked List-1
- Kadane's Algorithm
- Longest Increasing Subsequence
- Ways to Reach the n'th Stair
- Replace by X
- Sahil love good scorer
- Nearest Perfect Square
- A Boolean Matrix Problem
- Toggle The Middle
- K Sum
- XOR Pair
- Remove Duplicate
- Reverse a linked list
- Frequency in a Linked List
- Pairwise swap elements of a linked list
- Node at a given index in linked list
- Linked list of strings forms a palindrome
- Delete nodes having greater value on right
- Remove duplicates from an unsorted linked list
- Inorder Traversal
- Bubble Sort
- Insertion Sort
- Check for BST
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Two Mirror Trees
- Maximum Width of Tree
- Height of Binary Tree
- Balanced Tree Check
- Kth from End of Linked List
- Middle of a Linked List
- Left View of Binary Tree
- Delete Middle of Linked List
- Transform to Sum Tree
- Intersection Sorted Linked Lists
- Find Transition Point
- Remove Duplicates from a Sorted Linked List
- Level Order in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- Stack using Linked List
- Implement stack using array
- Insert a node in a BST
- BFS of graph
- Identical Trees
- Root to leaf path sum
- Square Root
- Nodes without a Sibling
- Insertion at doubly linked list
- Lowest Common Ancestor in a BST
- Binary Search
- Remove Duplicates Sorted Array
- Level Order Line by Line
- BST Keys in a Range
- Minimum Depth of a Binary Tree
- Remove Duplicates from an array
- Odd even level difference
- Equilibrium index of an array
- Unique rows in boolean matrix
- Leaves at Same Level or Not
- Third largest element
- Match specific pattern
- Josephus problem
- Expression Tree
- Max distance between same elements
- Delete in a Singly Linked List
- Kth largest element in BST
- Minimum distance in an Array
- Array Duplicates
- Max Level Sum in Binary Tree
- Special Stack
- Three way partitioning
- String Modification
- Longest consecutive sequence in Binary tree
- Index of an Extra Element
- Insert in a Sorted List
- Play with an array
- More than n/k Occurrences
- Reverse Using Stack
- Full Binary Tree
- Symmetric Tree
- Huffman Decoding-1
- Count Pairs whose sum is equal to X
- Maximum Node Level
- Find length of Loop
- Linked List Matrix
- Queue Reversal
- Reverse first K of a Queue
- Remove Half Nodes
- Height of Spiral Tree
- Sum of Left Leaf Nodes
- Delete Mid of a Stack
- The New Line
- Data Types
- Taking input
- Learn to Comment
- GetLine and Ignore
- Learning to be precise
- Bitwise Operators
- Even Odd
- For Loop- primeCheck
- While loop- printTable
- Learning Macros
- Step by Step Condition
- Swap the array elements
- Matrix Interchange
- Find the Frequency
- Back to Front
- Operations on PriorityQueue
- Get min at pop
- Deque Implementations
- Frequency Game
- Max and Second Max
- Hashing for pair - 1
- Hashing for pair - 2
- Fibonacci Numbers - Top Down DP
- Coin Change - Number of ways
- Kadane's Algorithm - II
- Inorder traversal of a BST
- Levelorder traversal of a BST
- First Set Bit
- Rightmost different bit
- Check K-th Bit
- Factorial Of Number
- Digits In Factorial
- GP Term
- Primality Test
- Longest Consecutive 1's
- Exactly 3 Divisors
- Mean And Median of Array
- Modular Inverse
- Power of 2
- Swap odd and even bits
- Minimum adjacent difference in a circular array
- Frequencies in a Limited Array
- Equilibrium Point
- Array Leaders
- Count 1's in binary array
- Floor in a Sorted Array
- Minimum Number in a sorted rotated array
- Roof Top
- Intersection of two sorted arrays
- Print adjacency list
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Transpose of Matrix
- Interchanging the rows of a Matrix
- Reversing the columns of a Matrix
- Matrix Boundary Traversal
- Exchange matrix columns
- Separate chaining in Hashing
- Naive Pattern Search
- Linear Probing in Hashing
- Check if a string is Isogram or not
- Count Non-Repeated Elements
- Print Non-Repeated Elements
- Anagram
- Winner of an election
- String Rotated by 2 Places
- Isomorphic Strings
- Most Frequent Character
- The Modified String
- Reverse Words
- Sum of numbers in string
- Minimum indexed character
- Panagram Checking
- Repeating Character
- Non Repeating Character
- Removing consecutive duplicates
- Removing consecutive duplicates - 2
- Parenthesis Checker
- Minimum indexed character
- Generate Binary Numbers
- K largest elements
- Minimum Cost of ropes
- N meetings in one room
- Largest number with given sum
- Count Digits in a Number
- Digital Root
- Reach a given score
- Count ways to N'th Stair
- Count number of hops
- Corresponding pair
- Deque deletion
- Rotate Deque By K
- First Repeating Element
- Union of Arrays with Duplicates
- Common Elements
- Reach a given score
- Check Equal Arrays
- Numbers containing 1, 2 and 3
- Positive Negative Pair
- Search Query for Strings
- Missing in Array
- Product array puzzle
- Roman Number to Integer
- Intersection of Arrays with Distinct
- Max Value Permutation
- Missing And Repeating
- Buildings receiving sunlight
- Non-Repeating Element
- Find Kth Rotation
- Minimum Energy
- Adding Ones
- Pairs with certain difference
- Common in 3 Sorted Arrays
- Good Pairs
- Sorted and Rotated Minimum
- Maximum no of 1's row
- Search in a Row-Column sorted matrix
- Move All Zeroes to End
- String Duplicates Removal
- Min sum formed by digits
- Min Subsets with Consecutive Numbers
- Minimize the sum of product
- Move all negative elements to end
- Chocolate Distribution Problem
- Count the triplets
- Find Pair Given Difference
- Bitonic Point
- Smallest subarray with sum greater than x
- Sort Array II
- Alternate Positive Negative
- Common Subsequence
- Convert a sentence into its equivalent mobile numeric keypad sequence
- Remove b and ac from a given string
- Addition of submatrix
- Rahul a Geek
- Rearrange a string
- Remove Duplicates
- Facing the sun
- Twice Counter
- Bitonic Generator Sort
- Second Largest
- Convert array into Zig-Zag fashion
- Two Sum - Pair with Given Sum
- Rotate Bits
- Second most repeated string in a sequence
- Check if array contains contiguous integers
- Rearrange to Make arr[i] = i
- Equal point in a string of brackets
- Find all pairs with a given sum
- Number of occurrence
- Reversing the equation
- Convert an array to reduced form
- Check if array is sorted
- Sum Pair closest to target
- Find missing in second array
- Longest Common Prefix of Strings
- Largest Fibonacci Subsequence
- First Repeated Character
- Sum of distinct elements for a limited range
- Counts Zeros Xor Pairs
- Two sum -Pairs with 0 Sum
- Three Great Candidates
- At Least K Occurrences
- Element with left side smaller and right side greater
- The Inverting Factor
- Count the Zeros
- Distinct absolute array elements
- Length of longest subarray
- Sum of Lengths of Non-Overlapping SubArrays
- Palindrome String
- Left out candies
- Delete Array Elements
- Chocolate Station
- Smallest greater elements in whole array
- Print Bracket Number
- Easy string
- Is Binary Number Multiple of 3
- Karatsuba Algorithm
- Find the Highest number
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Change Bits
- Copy Set Bits in Range
- Toggle bits in the given range
- Prime Number
- Product of Prime Factors
- Party of Couples
- Twisted Prime Number
- Minimum number of Coins
- Number Of Open Doors
- Maximize Toys
- Largest number possible
- Page Faults in LRU
- Trailing zeroes in factorial
- Least Prime Factor
- Ordered Prime Signature
- Find n-th Fortunate Number
- Maximum Diamonds
- Arithmetic Number
- Collection of pens
- Mysterious Series
- Find the highest occurring digit in prime numbers in a range
- Prime number of set bits
- Trace Path
- Print Pattern
- Array to BST
- Add two numbers
- Geek and Snow Fighting
- License Key Formatting
- Count the Substrings
- Fair string
- Split the binary string into substrings with equal number of 0s and 1s
- Max and Second Max
- Test if tuple is distinct
- Linear Probing in Hashing
- GP Term
- Count 1's in binary array
- Equilibrium Point
- Find the first node of loop in linked list
- Maximum Weight Node
- Type it!
- Min operations
- Last cell in a Matrix
- Balloon Everywhere
- Reverse both parts
- Cutting Rectangles
- Frogs and Jumps
- Make Array Elements Equal
- Equal Left and Right Subarray Sum
- Make the array beautiful
- Remainder on dividing by 11
- Is it Fibonacci
- Taxi Booking
- Max Level Sum in Binary Tree
- Binary matrix having maximum number of 1s
- Number of Subarrays of 0's
- Maximum Identical Bowls
- Bus Conductor
- Wifi Range
- Minimum Number
- Minimum Integer
- Seating Arrangement
- String Mirror
- Make Palindrome
- Binary Modulo
- Total Cuts
- Bit Magic
- Array Operations
- Dominant Pairs
- Total Traversal Time
- Unique Number of Occurrences
- Kth Smallest Difference
- Linked List Group Reverse
- Reorder List
- Binary Tree to DLL
- Clone List with Next and Random
- Min distance between two given nodes of a Binary Tree
- Serialize and deserialize a binary tree
- Max rectangle
- Subtraction in Linked List
- Distinct occurrences
- LRU Cache
- Box Stacking
- Points in Straight Line
- AVL Tree Insertion
- Partition array to k subsets
- Maximum subset XOR
- Longest Palindromic Substring in Linear Time
- Alien Dictionary
- Smallest range in K lists
- AVL Tree Deletion
- Merge Sort on Doubly Linked List
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Max Path Sum 2 Special Nodes
- Number of Turns in Binary Tree
- String Permutations
- Trapping Rain Water
- Max Circular Subarray Sum
- Pattern Search
- Smallest window containing all characters
- Histogram Max Rectangular Area
- Max of min for every window size
- Find median in a stream
- Solve the Sudoku
- Strongly connected component (Tarjans's Algo)
- Minimum Cost Path
- Median of Two sorted arrays
- Contiguous Elements XOR
- Word Ladder I
- Median of 2 Sorted Arrays of Different Sizes
- Burning Tree
- Merge Without Extra Space
- Next Smallest Palindrome
- Count Pairs in an Array
- The Painter's Partition Problem-II
- Palindrome SubStrings
- Distinct palindromic substrings
- Search Pattern
- Count Smaller elements
- Largest rectangle of 1s with swapping of columns allowed
- Longest Prefix Suffix
- Number of distinct subsequences
- Wildcard string matching
- Circle of strings
- Print all LCS sequences
- Edit Distance
- Minimum number of elements
- Minimum Points To Reach Destination
- Doctor Strange
- Minimum sum partition
- Number Formation
- Palindromic Partitioning
- Next Happy Number
- Stock Buy and Sell – Max K Transactions Allowed
- Check Tree Traversal
- Matrix Chain Multiplication
- Strictly Increasing Array
- Bit Difference
- Median in a row-wise sorted Matrix
- Very Tough Problem
- Kill Captain America
- Generalised Fibonacci numbers
- Boolean Parenthesization
- Longest valid Parentheses
- Longest Zig-Zag Sub Sequence
- Bike Racing
- Possible Paths in a Tree
- Word Break - 2
- N-Queen Problem
- Brackets in Matrix Chain Multiplication
- Geek collects the balls
- nCr mod M | Part 1
- Convex Hull
- Phone directory
- Next Optimal Move in Tic Tac Toe
- Adventure in a Maze
- Closest Palindrome
- Articulation Point - II
- Optimal binary search tree
- Find the pattern
- Assignment Problem
- Travelling Salesman Problem
- Longest Path in a matrix
- Interesting Queries
- Word Wrap
- Maximum sum Rectangle
- Create your own Calculator
- Let's Play!!!
- Nth digit of pi
- Huffman Encoding
- Water Connection Problem
- Find the Maximum Flow
- Find minimum s-t cut in a flow network
- Smallest Positive Integer that can not be represented as Sum
- 132 Geeky Buildings
- Corona Vaccine
- Shortest Range In BST
- Elixir of Life
- Search Pattern (Rabin-Karp Algorithm)
- Number of subsets with product less than k
- Maximum XOR subarray
- Longest substring to form a Palindrome
- Minimum X (xor) A
- Find all Critical Connections in the Graph
- Word Break (Trie)
- Minimum operations to convert array A to B
- Sorted Linked List to BST
- Longest Increasing Path in a Matrix
- Palindrome Pairs
- Array Partition
- Count occurrences of a given word in a 2-d array
- Number of distinct words with K maximum contiguous vowels
- Reverse a sublist of a linked list
- Word Ladder II
- Distribute candies in a binary tree
- Shortest Unique prefix for every word
- IPL 2021 - Final
- Split Array Largest Sum
- Find number of closed islands
- Scrambled String
- Shortest Path by Removing K walls
- Count the number of subarrays
- Find the String
- Maximum Number of Toys
- Articulation Point - I
- Kth Smallest Number in Multiplication Table
- Stock Buy and Sell – Max 2 Transactions Allowed
- Min Chars to Add for Palindrome
- Subset sums between the given range
- Number of pairs
- Maximum difference between pair in a matrix
- Largest rectangular sub-matrix whose sum is 0
- Minimum swap required to convert binary tree to binary search tree
- Remove Invalid Parentheses
- Minimum time to fulfil all orders
- Maximum number of overlapping Intervals
- Longest Path in a Directed Acyclic Graph
- Geek in a Maze
- Partition a set into two subsets such that the difference of subset sums is minimum (Set-2)
- K Centers Problem
- Maximum Connected group
- Expression Add Operators
- MaxSkill
- Minimize Max Distance to Gas Station
- LFU cache
- Candy
- Chocolates Pickup
- Better String
- Count the Substring
- Minimum Number Of Sprinkler
- Select Nodes
- Largest Sum Cycle
- Fixing Two swapped nodes of a BST
- Shortest Path Using Atmost One Curved Edge
- Avoid Explosion
- Walls Coloring II
- Redundant Parenthesis
- Partition the Array
- Count Binary Strings With No Consecutive 1s
- Divide in Incremental Groups
- Max min Height
- Maximum Number of coins
- Median of the Subarrays
- Minimum BST Sum Subtree
- Special Digits
- Cake Distribution Problem
- Min Time
- Game Of Subsets
- Making A Large Island
- Rotate Array
- Find Length of Linked List
- Count Leaves in Binary Tree
- Postorder Traversal
- Queue Using Array
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Preorder Traversal
- First Occurence
- Sum Except First and Last
- C++ STL | Set 5 (queue)
- Search a node in BST
- Palindromic Array
- Linked List Insertion At End
- Minimum element in BST
- Identical Linked Lists
- Insert in Middle of Linked List
- Pairwise Consecutive Elements
- Start Coding
- The Size of
- Logical Operators
- Sort and Reverse Vector
- Front to Back
- Stack designer
- Queue Push & Pop
- Who has the majority?
- Strongest Neighbour
- Array insert at index
- Array insert at end
- Operations on Stack
- Operations on Queue
- Absolute Value
- Convert Celsius To Fahrenheit
- Bit Difference
- Number is sparse or not
- Print 1 To N Without Loop
- Array Search
- Sorted Array Search
- Left Index
- Adding two matrices
- Multiply the matrices
- Binary String
- Remove common characters and concatenate
- Sum of Digits of a Number
- Fibonacci Using Recursion
- Reverse a String
- Pairing elements
- Make pair
- Vector insertion
- Insertion in deque
- Deque Traversal
- Vector Sum
- Keypad typing
- First n Fibonacci
- C++ Hello World
- Sum of Array
- Sum of Natural Numbers
- Balanced Array
- Value equal to index value
- Immediate Smaller Element
- Uncommon characters
- Remove repeated digits in a given number
- Largest Element in Array
- Rotate Array by One
- One odd Occuring
- Ishaan Loves Chocolates
- Array Subset
- Rotating an Array
- Min and Max in Array
- Positive and negative elements
- Set kth bit
- Smallest power of 2 greater than or equal to n
- Nth Even Fibonacci Number
- Sum of Digits Prime/Non-Prime
- Fibonacci to N
- Factorial
- G.F Series
- Ways To Tile A Floor
- Count Squares
- Check if the number is Fibonacci
- Middle of Three
- Three distinct factors
- The amazing number
- Finding Position
- Sum of primes
- Swap The Numbers
- Print Horizantal Line
- Print Matrix in snake Pattern
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