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kishanpandeyrkt
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STREAK
136/1426
days
Longest streak/Global longest streak
Language Used
C++, Java, C
Coding Score
2127
Problem Solved
632
Contest Rating
1655
201 points
Contributor
201 points
Contributor
1 Point
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100 Point
Scholar
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1k Point
Master
Master
10k Point
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50k Point
12 submissions in current year
SCHOOL (1)
BASIC (14)
EASY (214)
MEDIUM (334)
HARD (69)
- Reverse alternate nodes in Link List
- Sort a linked list of 0s, 1s and 2s
- Add Number Linked Lists
- Merge 2 sorted linked list in reverse order
- Insert in Sorted Circular Linked List
- Quick Sort
- Binary Tree from Inorder and Postorder
- Bottom View of Binary Tree
- Intersection in Y Shaped Lists
- Heap Sort
- Flattening a Linked List
- Directed Graph Cycle
- Undirected Graph Cycle
- Two Stacks in an Array
- Topological sort
- Find kth element of spiral matrix
- Serialize and deserialize a binary tree
- Dijkstra Algorithm
- Minimum Spanning Tree
- Additive sequence
- Largest BST
- Multiply two strings
- Minimum Swaps to Sort
- Implement Atoi
- Strongly Connected
- Print matrix in diagonal pattern
- Bipartite Graph
- Closest in BST
- BST with Dead End
- Root to leaf paths sum
- Find triplets with zero sum
- Duplicate Subtree
- k-th Smallest in BST
- Find Common Nodes in two BSTs
- Union of Two Linked Lists
- Euler circuit and Path
- Binary Tree to CDLL
- Pair Sum in BST
- Linked List that is Sorted Alternatingly
- K Sum Paths
- Leftmost and rightmost nodes of binary tree
- Arrange Consonants and Vowels
- Count the nodes at distance K from leaf
- Vertical sum
- Isomorphic Trees
- Maximum path sum from any node
- Predecessor and Successor
- Children Sum in a Binary Tree
- Diagonal sum in binary tree
- Normal BST to Balanced BST
- Sum of nodes on the longest path
- Kth Ancestor in a Tree
- ZigZag Tree Traversal
- Mother Vertex
- Smallest Positive Missing
- Power Of Numbers
- Rotate and delete
- Rearrange an array with O(1) extra space
- Maximum Index
- Kadane's Algorithm
- Count Inversions
- Two Repeated Elements
- Union of 2 Sorted with Duplicates
- Indexes of Subarray Sum
- Count the number of possible triangles
- Merge Without Extra Space
- Level of Nodes
- Make Matrix Beautiful
- Determinant of a Matrix
- Distance of nearest cell having 1
- Subarray with 0 sum
- Case-specific Sorting of Strings
- Nearly sorted
- Fractional Knapsack
- Detect Cycle using DSU
- Stickler Thief
- Sum of all substrings of a number
- Longest Increasing Subsequence
- Longest Common Subsequence
- Lucky Numbers
- Implement Trie
- Shortest Common Supersequence
- Nth Catalan Number
- Rotten Oranges
- Maximize The Cut Segments
- Print Anagrams Together
- Rotate by 90 degree
- Top K Frequent in Array
- Word Break
- Stock Buy and Sell – Multiple Transaction Allowed
- Word Search
- 4 Sum - All Quadruples
- Excel Sheet | Part - 1
- Sort 0s, 1s and 2s
- Pascal Triangle
- Maximum Index
- Number of subarrays with maximum values in given range
- Flip Bits
- Top k numbers in a stream
- Consecutive 1's not allowed
- Pythagorean Triplet
- Sum of bit differences
- Form the Largest Number
- Maximum Product Subarray
- Longest subarray with sum divisible by K
- Check if a string is repetition of its substring of k-length
- Check if frequencies can be equal
- Column name from a given column number
- Substrings with K Distinct
- Cutting Binary String
- Shuffle integers
- Find the N-th character
- k largest elements
- Sum of XOR of all pairs
- Longest Common Substring
- Longest Substring with K Uniques
- Longest Palindrome in a String
- K-th element of two Arrays
- Arranging the array
- Rod Cutting
- LCS of three strings
- Longest Palindromic Subsequence
- Largest Sum Subarray of Size at least K
- Minimum sum
- Minimize the Heights II
- Transform to prime
- First and Last Occurrences
- Minimum Deletions
- Print N-bit binary numbers having more 1s than 0s
- Permutations of a String
- Number following a pattern
- CamelCase Pattern Matching
- Sum of Products
- Subarrays Product Less than K
- Unique Number II
- Bleak Numbers
- Modular Exponentiation
- Largest prime factor
- Modified Game of Nim
- Minimum number of deletions and insertions
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Sequence of Sequence
- Santa Banta
- Gold Mine Problem
- Perfect Sum Problem
- Power Set
- nCr
- Minimum steps to destination
- Partition Equal Subset Sum
- Count possible ways to construct buildings
- Count digit groupings of a number
- Array Pair Sum Divisibility Problem
- Matchsticks game
- Number of paths
- Number of paths in a matrix with k coins
- Game with String
- Smith Number
- Next Permutation
- Exit Point in a Matrix
- Longest Repeating Subsequence
- Total Decoding Messages
- Stream First Non-repeating
- Transitive closure of a Graph
- Replace O's with X's
- Express as sum of power of natural numbers
- Traverse All Edges And Vertices
- Find the string in grid
- Floyd Warshall
- Flood fill Algorithm
- Techfest and the Queue
- Largest subsquare surrounded by X
- Shortest Source to Destination Path
- Divisibility tree
- Police and Thieves
- Search Pattern (Rabin-Karp Algorithm)
- Bellman-Ford
- Subarrays with sum K
- Remove K Digits
- Number of Provinces
- Prefix match with other strings
- Find duplicate rows in a binary matrix
- Paths from root with a specified sum
- Shortest Prime Path
- Insertion Sort for Singly Linked List
- Maximum Removals
- Unique Number III
- All Unique Permutations of an array
- Course Schedule
- Clone an Undirected Graph
- Overlapping Intervals
- Remove and Reverse
- Find k-th smallest element in given n ranges
- Even Swap
- Reverse a Stack
- Maximum Meetings in One Room
- Max Equal sum of 3 Stacks
- Buy Maximum Stocks
- Find shortest safe route in a matrix
- Graph is Tree or Not
- Remove and Reverse
- Shortest Distance in a Binary Maze
- Minimum Multiplications to reach End
- Number Of Enclaves
- Eventual Safe States
- City With the Smallest Number of Neighbors at a Threshold Distance
- Number Of Islands
- Number of Ways to Arrive at Destination
- Path With Minimum Effort
- Cheapest Flights Within K Stops
- Connecting the graph
- Shortest Path in Undirected Graph
- Maximum Stone Removal
- Shortest path in Directed Acyclic Graph
- Majority Element II
- Combination Sum II
- Shortest Path in Weighted undirected graph
- Task Scheduler
- Hands of Straights
- Minimum Absolute Difference In BST
- Lemonade Change
- Maximum Sum Combination
- Floor in BST
- GCD Array
- Minimize number of Students to be removed
- Flattening a Linked List
- Absolute difference divisible by K
- Make array elements unique
- Next Greater Element in Circular Array
- Carpet into Box
- Minimum X (xor) A
- Geeks And The String
- Minimum repeat to make substring
- Paint N House
- 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
- Water the plants
- 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
- Spidey Sense
- Count Cyclic Paths
- Make Array Beautiful
- Distribute Chocolates
- Whether to Judge Or Not
- 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
- Fest and Posters
- Geek and the XOR Play
- Shortest XY distance in Grid
- BST Maximum Difference
- Nearest smaller tower
- Another Coin Change Problem
- Geek's Village and Wells
- Find Number
- Max Coins
- Good Subtrees
- Subtree In N-ary Tree
- Easy Task
- Stone Bags
- Add Minimum Characters
- Maximum subset sum
- Palindrome with minimum sum
- Destroy the garden
- Internet Connection
- Project Manager
- Count Total Setbits
- Tree Transformation
- Construct a Full Binary Tree
- Happy Subarrays
- Distinct Elements
- Modify Linked List-1
- Running Instructions
- Cyclic Tree
- Find Kth permutation
- Switch Board
- Split It Up
- Remove the balls
- Fraction pairs with sum 1
- Tree Transformation
- Find the longest string
- Total pairs
- Subarray of length 2
- LCA Pairs
- Minimum Distance Graph
- Plucking Flowers
- Empty the String
- Is it possible to sort the array?
- Special Strings
- New Year Resolution
- Grinding Geek
- Maximum Energy
- Flatten BST to sorted list
- Pairs violating the BST property
- Kth common ancestor in BST
- Strong Indices
- Set Matrix Zeroes
- Find All Triplets with Zero Sum
- Split array in three equal sum subarrays
- Count all triplets with given sum in sorted array
- Linked List Group Reverse
- Min distance between two given nodes of a Binary Tree
- Subtraction in Linked List
- Distinct occurrences
- AVL Tree Insertion
- Alien Dictionary
- AVL Tree Deletion
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Max Path Sum 2 Special Nodes
- String Permutations
- Solve the Sudoku
- Word Ladder I
- Next Smallest Palindrome
- Count Pairs in an Array
- Search Pattern (KMP-Algorithm)
- Number of distinct subsequences
- Wildcard string matching
- Longest repeating and non-overlapping substring
- Minimum sum partition
- Palindromic Partitioning
- Next Happy Number
- Strictly Increasing Array
- Generalised Fibonacci numbers
- Boolean Parenthesization
- Possible Paths in a Tree
- Brackets in Matrix Chain Multiplication
- Find all Critical Connections in the Graph
- Distribute candies in a binary tree
- Split Array Largest Sum
- Find number of closed islands
- Scrambled String
- Find the String
- Maximum Number of Toys
- Articulation Point - I
- Stock Buy and Sell – Max 2 Transactions Allowed
- Largest rectangular sub-matrix whose sum is 0
- Vertex Cover
- Maximum Connected group
- Expression Add Operators
- Minimize Max Distance to Gas Station
- Candy
- Account Merge
- Better String
- Count Lucky Permutations
- Count the Substring
- 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
- Maximum good length
- Geekina Hate 1s
- Count Strings
- Making A Large Island
- Geekland Is Haunted
- Pairwise swap elements of a linked list
- Delete nodes having greater value on right
- Remove duplicates from an unsorted linked list
- Reverse a Doubly Linked List
- Right View of Binary Tree
- K distance from root
- Delete without head pointer
- Height of Binary Tree
- Balanced Tree Check
- Kth from End of Linked List
- Delete Middle of Linked List
- Decimal Equivalent of Binary Linked List
- Intersection Sorted Linked Lists
- Find Transition Point
- Remove Duplicates from a Sorted Linked List
- Level Order in spiral form
- DFS of Graph
- Insert a node in a BST
- BFS of graph
- Identical Trees
- Square Root
- Nodes without a Sibling
- Lowest Common Ancestor in a BST
- Binary Tree to BST
- Unique rows in boolean matrix
- Remove every k'th node
- Leaves at Same Level or Not
- You and your books
- Delete in a Singly Linked List
- Kth largest element in BST
- Minimum distance in an Array
- Array Duplicates
- Level order traversal
- Inorder Successor in BST
- Sum of leaf nodes in BST
- More than n/k Occurrences
- Symmetric Tree
- Delete Alternate Nodes
- Find the Sum of Last N nodes of the Linked List
- Count Pairs whose sum is equal to X
- Median of BST
- Leaf under budget
- Queue Reversal
- Reverse first K of a Queue
- Brothers From Different Roots
- Delete Mid of a Stack
- Swap the array elements
- Predict the Column
- Reverse an Array
- Frequency in Queue
- Frequency Game
- First Set Bit
- Rightmost different bit
- K-th Bit is Set or Not
- Power of 2
- Wave Array
- Frequencies in a Limited Array
- Equilibrium Point
- Array Leaders
- Print adjacency list
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Transpose of Matrix
- Matrix Boundary Traversal
- Winner of an election
- String Rotated by 2 Places
- Strings Rotations of Each Other
- Isomorphic Strings
- Panagram Checking
- Non Repeating Character
- Reach a given score
- Count number of hops
- Union of Arrays with Duplicates
- Missing in Array
- Roman Number to Integer
- Missing And Repeating
- Count the elements
- Find the closest number
- Adding Ones
- Move All Zeroes to End
- String Duplicates Removal
- Chocolate Distribution Problem
- Count pairs Sum in matrices
- Find Pair Given Difference
- Check if a given string is a rotation of a palindrome
- Second Largest
- Convert array into Zig-Zag fashion
- Number of occurrence
- Reversing the equation
- Convert an array to reduced form
- Sum Pair closest to target
- Find missing in second array
- String's Count
- Play With OR
- At Least K Occurrences
- Find the closest pair from two arrays
- Palindrome String
- Pair with given sum in a sorted array
- Is Binary Number Multiple of 3
- Minimum Operations
- Divisibility by 8
- Number of 1 Bits
- Find the Highest number
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Copy Set Bits in Range
- Maximum Sum Problem
- Party of Couples
- Shortest path from 1 to n
- Sum 1 to n Divisors
- Reach the Nth point
- Minimum number of Coins
- Perfect Numbers
- Largest number possible
- Recamans sequence
- Form a number divisible by 3 using array digits
- Least Prime Factor
- Sum of First N Natural Numbers
- Recursive sequence
- Juggler Sequence
- Maximum Diamonds
- Arithmetic Number
- Surround the 1's
- Trace Path
- Inorder Traversal and BST
- Letters Collection
- Print Pattern
- Sum of dependencies in a graph
- License Key Formatting
- Count the Substrings
- Smallest window containing 0, 1 and 2
- Insert an Element at the Bottom of a Stack
- Assign Tasks
- Fibonacci series up to Nth term
- Maximum Depth Of Binary Tree
- Divisor Game
- Minimize the sum
- Last modified ball
- Transform to Sum Tree
- Parent of Max GCD Siblings in a Binary Tree
- Find the first node of loop in linked list
- Maximum Weight Node
- Type it!
- Min operations
- Last cell in a Matrix
- Balloon Everywhere
- Save Civilians
- Juggling
- Min Jump
- 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
- Occurrences of 101
- 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
- Select Maximum number
- Minimum Integer
- Seating Arrangement
- String Mirror
- Powerfull Integer
- Make Palindrome
- Rank Queries
- Binary Modulo
- Total Cuts
- Bit Magic
- Array Operations
- Dominant Pairs
- Total Traversal Time
- Valuable String
- Accept The Challenge
- Antique Collections
- Binary Array
- Density of a Tree
- Minimum Thorns
- Ticket Counter
- Geek's Plants
- Happy Friends
- Magic and toy shop
- Level of Node in Tree
- Unique Number of Occurrences
- Separate Stone
- Balloon Everywhere
- Two Swaps
- Beautiful Number
- Strong Students in School
- Complete the Staircase
- String Matching
- Array Game
- Geek and Buildings
- Silver and Gold
- Mean BST
- High Frequency
- Weird Island
- Construction of a string
- Virus Infection
- Maximum Battalions
- Geekland Fair
- First Word
- Count Minimum Swaps
- Varient Operations
- Meeting Rooms
- Count Pairs whose sum is less than target
- Union of Two Sorted Arrays with Distinct Elements
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