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bhargav_katabathuni
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STREAK
287/1558
days
Longest streak/Global longest streak
Organization
Antstack Technologies
Language Used
Python, Java, Javascript, C++
Coding Score
2159
Problem Solved
734
Contest Rating
1694
45 points
Contributor
45 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
35 submissions in current year
SCHOOL (2)
BASIC (48)
EASY (277)
MEDIUM (358)
HARD (49)
- Reverse a linked list
- Frequency in a Linked List
- Pairwise swap elements of a linked list
- Node at a given index in linked list
- Compare two linked lists
- Delete nodes having greater value on right
- Remove duplicates from an unsorted linked list
- Delete in a Doubly Linked List
- Inorder Traversal
- Reverse a Doubly Linked List
- Bubble Sort
- 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
- Check If Circular Linked List
- Left View of Binary Tree
- Delete Middle of Linked List
- Decimal Equivalent of Binary Linked List
- Transform to Sum Tree
- Intersection Sorted Linked Lists
- Find Transition Point
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Postorder Traversal
- Level Order in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- Stack using Linked List
- Insert a node in a BST
- BFS of graph
- Identical Trees
- Root to leaf path sum
- Square Root
- Nodes without a Sibling
- 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
- Binary Tree to BST
- Unique rows in boolean matrix
- Remove every k'th node
- Leaves at Same Level or Not
- Multiply two linked lists
- Search a node in BST
- 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
- Inorder Successor in BST
- Index of an Extra Element
- Intersection of Two Linked Lists
- Insert in a Sorted List
- Minimum element in BST
- Sum of leaf nodes in BST
- More than n/k Occurrences
- Max and min element in Binary Tree
- Perfect Binary Tree
- Reverse Using Stack
- Symmetric Tree
- Delete Alternate Nodes
- Find the Sum of Last N nodes of the Linked List
- Next Right Node
- Count Pairs whose sum is equal to X
- Maximum Node Level
- Leaf under budget
- Find n/k th node in Linked list
- Queue Reversal
- Reverse first K of a Queue
- Remove Half Nodes
- Sum of Leaf Nodes
- Sum of Left Leaf Nodes
- Nodes at Odd Levels
- Closest Neighbour in BST
- Find Sum Pairs Across Two BSTs
- Sum of Leaf Nodes at Min Level
- Tilt of Binary Tree
- Delete Mid of a Stack
- Swap the array elements
- Predict the Column
- Sum of Big Integers
- Frequency in Queue
- Get min at pop
- Frequency Game
- First Set Bit
- Rightmost different bit
- Check K-th Bit
- Longest Consecutive 1's
- Power of 2
- Frequencies in a Limited Array
- Equilibrium Point
- Array Leaders
- Floor in a Sorted Array
- Print adjacency list
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Transpose of Matrix
- Matrix Boundary Traversal
- Anagram
- Winner of an election
- String Rotated by 2 Places
- Isomorphic Strings
- Reverse Words
- Minimum indexed character
- Panagram Checking
- Non Repeating Character
- Parenthesis Checker
- Generate Binary Numbers
- N meetings in one room
- Reach a given score
- Count number of hops
- First Repeating Element
- Union of Arrays with Duplicates
- Check Equal Arrays
- Missing in Array
- Product array puzzle
- Roman Number to Integer
- Intersection of Arrays with Distinct
- Max Value Permutation
- Missing And Repeating
- Non-Repeating Element
- Find Kth Rotation
- Sort by Set Bit Count
- Adding Ones
- Common in 3 Sorted Arrays
- 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
- Minimize the sum of product
- Move all negative elements to end
- Chocolate Distribution Problem
- Count the triplets
- Swap and Maximize
- Bitonic Point
- Alternate Positive Negative
- Check if a given string is a rotation of a palindrome
- Convert a sentence into its equivalent mobile numeric keypad sequence
- Rearrange a string
- Remove Duplicates
- Second Largest
- Convert array into Zig-Zag fashion
- Two Sum - Pair with Given Sum
- Rotate Bits
- Second most repeated string in a sequence
- Find all pairs with a given sum
- Number of occurrence
- Reversing the equation
- Does array represent Heap
- Convert an array to reduced form
- Check if array is sorted
- String's Count
- First Repeated Character
- Two sum -Pairs with 0 Sum
- Segregate 0s and 1s
- Play With OR
- At Least K Occurrences
- Find the closest pair from two arrays
- Count the Zeros
- Palindrome String
- Search array with adjacent diff at most k
- Easy string
- Is Binary Number Multiple of 3
- Extract the Number from the String
- Minimum Operations
- Divisibility by 8
- Number of 1 Bits
- Find the Highest number
- Midori and chocolates
- Reverse Bits
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Change Bits
- Ceil The Floor
- Swap two nibbles in a byte
- Copy Set Bits in Range
- Count Digits
- Prime Number
- Maximum Sum Problem
- Party of Couples
- Shortest path from 1 to n
- Sum 1 to n Divisors
- The Bit Game
- Reach the Nth point
- Minimum number of Coins
- Break a number
- Perfect Numbers
- Maximize Toys
- Largest number possible
- Recamans sequence
- Form a number divisible by 3 using array digits
- Least Prime Factor
- Sum of First N Natural Numbers
- Prime Factors
- Recursive sequence
- Juggler Sequence
- Maximum Diamonds
- Arithmetic Number
- Surround the 1's
- Inorder Traversal and BST
- Sequence Fun
- Letters Collection
- Print Pattern
- Primes sum
- Sum of dependencies in a graph
- Count all possible paths from top left to bottom right
- Largest value in each level
- Count the Substrings
- Minimum Sum of Absolute Differences of Pairs
- Smallest window containing 0, 1 and 2
- Move Last Element to Front of a Linked List
- Find XOR of numbers from L to R.
- Stock Buy and Sell – Max one Transaction Allowed
- Maximum Depth Of Binary Tree
- Divisor Game
- Bus Ticket Change
- Bit Manipulation
- Unique Binary Tree Requirements
- Minimize the sum
- Transform to Sum Tree
- Parent of Max GCD Siblings in a Binary Tree
- Type it!
- Balloon Everywhere
- Reverse both parts
- 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
- Calculate The Work Done
- 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
- Maximize Sum
- Make Palindrome
- Bit Magic
- Array Operations
- Dominant Pairs
- Total Traversal Time
- Valuable String
- Antique Collections
- Cousins in Tree
- Strong Students in School
- Ticket Counter
- Unique Number of Occurrences
- Separate Stone
- Balloon Everywhere
- Beautiful Number
- Strong Students in School
- Silver and Gold
- Mean BST
- Antique Collections
- Character Matrix Conundrum
- Prefix Distinct
- Eye's Contact
- Implement Lower Bound
- Implement Upper Bound
- 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
- Detect Loop in linked list
- Insert in Sorted Circular Linked List
- Count BST nodes that lie in a given range
- Check for BST
- 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
- Connect Nodes of Levels
- Flattening a Linked List
- Diagonal Tree Traversal
- Stack using Queue
- Tree Boundary Traversal
- Implement stack using array
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Maximum difference between node and its ancestor
- Absolute List Sorting
- Lowest Common Ancestor in a BST
- Two Stacks in an Array
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological Sort
- Vertical Tree Traversal
- Find the number of islands
- Find kth element of spiral matrix
- Get Min from Stack
- Gas Station
- Wildcard Pattern Matching
- Validate an IP Address
- Remove loop in Linked List
- Dijkstra Algorithm
- Minimum Spanning Tree
- Multiply two strings
- Implement Atoi
- Palindrome Linked List
- Bipartite Graph
- Closest in BST
- BST with Dead End
- Count distinct elements in every window
- Longest Palindrome in Linked List
- Bridge edge in a graph
- 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
- Union of Two Linked Lists
- Euler circuit and Path
- Ancestors in Binary Tree
- Binary Tree to CDLL
- Root to Leaf Paths
- K Sum Paths
- Leftmost and rightmost nodes of binary tree
- Count the nodes at distance K from leaf
- Vertical sum
- Isomorphic Trees
- Maximum path sum
- Predecessor and Successor
- Children Sum in a Binary Tree
- Diagonal sum in binary tree
- Find length of Loop
- Median of BST
- Normal BST to Balanced BST
- Sum of nodes on the longest path
- Kth Ancestor in a Tree
- Check if two Nodes are Cousins
- ZigZag Tree Traversal
- Vertical Width of a Binary Tree
- Swap Kth nodes from ends
- Mother Vertex
- Ceil in BST
- Reverse array in groups
- Smallest Positive Missing
- Power Of Numbers
- Wave Array
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Stock buy and sell
- Rotate Array
- Kadane's Algorithm
- Majority Element
- Binary Array Sorting
- Indexes of Subarray Sum
- Triplet Sum in Array
- Merge Without Extra Space
- Level of Nodes
- Make Matrix Beautiful
- Boolean Matrix
- Spirally traversing a matrix
- Rotate by 90 degree
- Determinant of a Matrix
- Distance of nearest cell having 1
- Subarray with 0 sum
- 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
- Find median in a stream
- Fractional Knapsack
- Minimum Platforms
- Detect Cycle using DSU
- Stickler Thief
- Ways to Reach the n'th Stair
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Largest number
- K nearest Points
- Lucky Numbers
- Sort according to an Array
- Preorder to BST
- X Total Shapes
- Zero Sum Subarrays
- Find whether path exist
- Kth Smallest
- Implement Trie
- Shortest Common Supersequence
- Nth Catalan Number
- Rotten Oranges
- Top K Frequent in Array
- Word Break
- Stock Buy and Sell – Multiple Transaction Allowed
- Word Search
- Prerequisite Tasks
- 4 Sum - All Quadruples
- Sort 0s, 1s and 2s
- Paths to reach origin
- Maximum Sub Array
- Pascal Triangle
- Maximum Index
- Number of subarrays with maximum values in given range
- Flip Bits
- Top k numbers in a stream
- Sum of Middle elements of two sorted arrays
- Single Among Doubles in a Sorted
- Consecutive 1's not allowed
- Count of Subarrays
- Pythagorean Triplet
- Painting the Fence
- Search in Rotated Sorted Array
- Sum of bit differences
- Form the Largest Number
- Alternate Vowel and Consonant String
- Add Binary Strings
- Maximum Product Subarray
- Longest subarray with sum divisible by K
- Check if a string is repetition of its substring of k-length
- Row with max 1s
- Column name from a given column number
- Substrings with K Distinct
- Form a palindrome
- Nuts and Bolts Problem
- Longest Subarray with Sum K
- Next Smaller Element
- Sum of two large numbers
- Max Sum without Adjacents
- Shuffle integers
- Reverse each word in a given string
- 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
- String formation from substring
- Rod Cutting
- LCS of three strings
- Longest Palindromic Subsequence
- Largest Sum Subarray of Size at least K
- First negative in every window of size k
- Build the smallest
- Roll the characters of a String
- Minimize the Heights II
- Transform to prime
- First and Last Occurrences
- Minimum Deletions
- A difference of values and indexes
- Find patterns
- Permutations of a String
- Number following a pattern
- CamelCase Pattern Matching
- Subarrays Product Less than K
- Unique Number II
- Bleak Numbers
- Modular Exponentiation
- Game of XOR
- Largest prime factor
- 3 Divisors
- Modified Game of Nim
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Sequence of Sequence
- Santa Banta
- Gold Mine Problem
- Perfect Sum Problem
- Power Set
- Knapsack with Duplicate Items
- nCr
- Partition Equal Subset Sum
- Longest Bitonic subsequence
- Count possible ways to construct buildings
- Count digit groupings of a number
- Array Pair Sum Divisibility Problem
- Magic Triplets
- Matchsticks game
- Prime Pair with Target Sum
- Number of paths
- Number of paths in a matrix with k coins
- LCM Triplet
- Return two prime numbers
- Find nth root of m
- Game with String
- Smith Number
- Next Permutation
- Smaller on Left
- Maximum sum of hour glass
- How Many X's?
- Exit Point in a Matrix
- Longest Repeating Subsequence
- Stream First Non-repeating
- Segregate even and odd nodes in a Linked List
- The Smurfs
- Eulerian Path in an Undirected Graph
- Transitive closure of a Graph
- Replace O's with X's
- Two odd Occuring
- Express as sum of power of natural numbers
- Traverse All Edges And Vertices
- Find the string in grid
- Count the paths
- Floyd Warshall
- Flood fill Algorithm
- Array to BST
- Techfest and the Queue
- Shortest Source to Destination Path
- Iterative Inorder
- Preorder traversal (Iterative)
- Iterative Postorder
- Subset Sum Problem
- Longest Palindromic Substring
- 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
- Sort for Singly Linked List
- Anti Diagonal Traversal of Matrix
- IPL 2021 - Match Day 2
- Unique Number III
- All Unique Permutations of an array
- Course Schedule II
- Clone an Undirected Graph
- Remove and Reverse
- Reverse a Stack
- Maximum Meetings in One Room
- Max Equal sum of 3 Stacks
- Buy Maximum Stocks
- Array Removals
- Graph is Tree or Not
- LCP
- Number of Distinct Islands
- Shortest Distance in a Binary Maze
- Minimum Multiplications to reach End
- Number Of Enclaves
- Safe States
- Path With Minimum Effort
- Cheapest Flights Within K Stops
- Shortest Path in Undirected Graph
- Shortest path in Directed Acyclic Graph
- Majority Element - More Than n/3
- Sum of Beauty of All Substrings
- Longest subarray with Atmost two distinct integers
- Frog Jump
- Minimal Cost
- Stock Buy and Sell with Cooldown
- Combination Sum III
- Aggressive Cows
- Shortest Path in Weighted undirected graph
- Prime Factorization using Sieve
- Task Scheduler
- Hands of Straights
- Buy Stock with Transaction Fee
- Number of Longest Increasing Subsequence
- Maximum Sum Combination
- Count Number of Nodes in a Binary Tree
- Longest String Chain
- Print Longest Increasing Subsequence
- Partitions with Given Difference
- Floor in BST
- Maximum Value
- Next Greater Element in Circular Array
- Find the first node of loop in linked list
- Carpet into Box
- Geeks And The String
- Intersection Point in Y Shaped Linked Lists
- Minimum Days
- Prime List
- Water the plants
- Connect Nodes at Same Level
- Unique Paths in a Grid
- Valid Compressed String
- Fill the Matrix
- Number of Good Components
- Optimal Array
- Maximum Intersecting Lines
- String rp or pr
- Shy Geek
- Minimum Steps Required
- Maximum Triplet product
- Second smallest number
- Maximum Possible Value
- Distinct Difference
- Yet another query problem
- Geek hates too many 1s
- Maximum Length
- Remove the balls
- Bheem Wants Ladoos
- Smaller Sum
- Shortest XY distance in Grid
- Nearest smaller tower
- Powerful Integer
- Add Minimum Characters
- Maximum subset sum
- Construct a Full Binary Tree
- Modify Linked List-1
- Find Kth permutation
- Remove the balls
- Fraction pairs with sum 1
- New Year Resolution
- Grinding Geek
- Flatten BST to sorted list
- Maximum Doublet XOR
- Count Subarrays with given XOR
- Print Linked List
- Find Length of Linked List
- Check for Binary String
- Size of Binary Tree
- Count Leaves in Binary Tree
- Queue Using Array
- Print number pattern
- Preorder Traversal
- First Occurence
- Palindromic Array
- Linked List Insertion At End
- Anagram of String
- Is Linked List Length Even?
- Identical Linked Lists
- Modular Node
- Sum of Binary Tree
- Insert in Middle of Linked List
- Alternates in an Array
- Number is sparse or not
- Print 1 To N Without Loop
- Array Search
- Sorted Array Search
- Reverse a String
- First n Fibonacci
- Rearranging array
- Sum of Natural Numbers
- Print Elements of Array
- Value equal to index value
- Uncommon characters
- Repeated Character
- Largest Element in Array
- Rotate Array by One
- Game with nos
- One odd Occuring
- Array Subset
- Rotating an Array
- Min and Max in Array
- Print first letter of every word in the string
- Odd or Even
- Find position of set bit
- Set kth bit
- Set the rightmost unset bit
- Reverse digits
- Print 1 to n without using loops
- Sum of product of x and y with floor(n/x) = y
- Pattern 5
- Naughty Geek
- Maximize Expression
- Linked List Group Reverse
- Reorder List
- Min distance between two given nodes of a Binary Tree
- Serialize and deserialize a binary tree
- Subtraction in Linked List
- Distinct occurrences
- LRU Cache
- AVL Tree Insertion
- Alien Dictionary
- AVL Tree Deletion
- Nodes at given distance in binary tree
- String Permutations
- Trapping Rain Water
- Solve the Sudoku
- Word Ladder I
- Median of 2 Sorted Arrays of Different Sizes
- Next Smallest Palindrome
- Search Pattern
- Number of distinct subsequences
- Wildcard string matching
- Sum-string
- Edit Distance
- Minimum sum partition
- Palindromic Partitioning
- Next Happy Number
- Matrix Chain Multiplication
- Median in a row-wise sorted Matrix
- Boolean Parenthesization
- Brackets in Matrix Chain Multiplication
- Phone directory
- Find all Critical Connections in the Graph
- Reverse a sublist of a linked list
- Distribute Candies
- Split Array Largest Sum
- Find the String
- Stock Buy and Sell – Max 2 Transactions Allowed
- Largest rectangular sub-matrix whose sum is 0
- Vertex Cover
- Expression Add Operators
- Candy
- Better String
- Fixing Two swapped nodes of a BST
- Avoid Explosion
- Partition the Array
- Special Digits
- Cake Distribution Problem
- Min Time
- Geekina Hate 1s
- Making A Large Island