lostboi
STREAK
39/1482
days
Longest streak/Global longest streak
Language Used
Java, Python, C++
Coding Score
1947
Problem Solved
854
Contest Rating
-
72 points
Contributor
72 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
275 submissions in current year
SCHOOL (70)
BASIC (126)
EASY (363)
MEDIUM (262)
HARD (33)
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Detect Loop in linked list
- Insert in Sorted Circular Linked List
- Merge Sort
- Bottom View of Binary Tree
- Diameter of a Binary Tree
- Merge two sorted linked lists
- Sum Tree
- Directed Graph Cycle
- Undirected Graph Cycle
- Lowest Common Ancestor in a Binary Tree
- Square root of a number
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological sort
- Merge K sorted linked lists
- Find the number of islands
- Max sum in the configuration
- Get Min from Stack
- Make Binary Tree From Linked List
- Toeplitz matrix
- Is Binary Tree Heap
- Validate an IP Address
- Remove loop in Linked List
- Dijkstra Algorithm
- Sorted subsequence of size 3
- Multiply two strings
- Implement Atoi
- Maximum Difference
- Palindrome Linked List
- Bipartite Graph
- BST with Dead End
- Merge two BST 's
- Root to leaf paths sum
- Bridge edge in a graph
- Find triplets with zero sum
- Sort a stack
- k-th Smallest in BST
- Peak element
- Euler circuit and Path
- Pair Sum in BST
- Root to Leaf Paths
- XOR Linked List
- Counting elements in two arrays
- Linked List that is Sorted Alternatingly
- Insert in Sorted way in a Sorted DLL
- Predecessor and Successor
- Children Sum in a Binary Tree
- Deletion and Reverse in Circular Linked List
- ZigZag Tree Traversal
- Cat and Hat
- Maximum sum of Non-adjacent nodes
- Gray to Binary equivalent
- Smallest Positive Missing
- Power Of Numbers
- Rotate and delete
- Rearrange Array Alternately
- Maximum Index
- Stock buy and sell
- Rotate Array
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Two Repeated Elements
- Union of Two Sorted Arrays
- Indexes of Subarray Sum
- Sort by Absolute Difference
- Triplet Sum in Array
- Level of Nodes
- Boolean Matrix
- Spirally traversing a matrix
- Search in a sorted Matrix
- Subarray with 0 sum
- Subarray range with given sum
- Longest Consecutive Subsequence
- Case-specific Sorting of Strings
- Next Greater Element
- K Sized Subarray Maximum
- Activity Selection
- Fractional Knapsack
- Minimum Platforms
- Minimum number of jumps
- Detect Cycle using DSU
- Stickler Thief
- Ways to Reach the n'th Stair
- Optimal Strategy For A Game
- Sum of all substrings of a number
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Number of Unique Paths
- Find whether path exist
- Kth Smallest
- Implement Trie
- Rotten Oranges
- Container With Most Water
- Print Anagrams Together
- Rotate by 90 degree
- Stock buy and sell II
- Sort 0s, 1s and 2s
- Paths to reach origin
- Missing And Repeating
- Pascal Triangle
- Number of subarrays with maximum values in given range
- Flip Bits
- Sum of Subarrays
- Longest Span in two Binary Arrays
- Consecutive 1's not allowed
- Single Among Doubles
- Pythagorean Triplet
- Search in Rotated Sorted Array
- Sum of bit differences
- Max Score from Subarray Mins
- Form the Largest Number
- Maximum Product Subarray
- Sort the given array after applying the given equation
- Row with max 1s
- Swapping pairs make sum equal
- Column name from a given column number
- Substrings with K Distinct
- Palindrome SubStrings
- Nuts and Bolts Problem
- Longest Subarray with Sum K
- Shuffle integers
- Find the N-th character
- Length of the longest substring
- k largest elements
- Find missing in second array
- Longest Common Substring
- Smallest distinct window
- Longest Substring with K Uniques
- Look and Say Pattern
- K-th element of two Arrays
- Rod Cutting
- Missing element of AP
- Longest Palindromic Subsequence
- Largest Sum Subarray of Size at least K
- Equalize the Towers
- Minimum sum
- Not a subset sum
- Minimize the Heights II
- Transform to prime
- First and last occurrences of x
- Minimum Deletions
- Print N-bit binary numbers having more 1s than 0s
- Valid Substring
- Shop in Candy Store
- Sum of Products
- Unique Number II
- Modular Exponentiation for large numbers
- Game of XOR
- Maximum Tip Calculator
- Modified Game of Nim
- Gold Mine Problem
- Dice throw
- Fibonacci Sum
- Trail of ones
- Power Set
- Count ways to N'th Stair(Order does not matter)
- Knapsack with Duplicate Items
- nCr
- Array Pair Sum Divisibility Problem
- Nth Natural Number
- Knight Walk
- LCM Triplet
- Find Prime numbers in a range
- Smith Number
- Smallest number on left
- Maximum sum of hour glass
- How Many X's?
- Left Rotate Matrix K times
- Transitive closure of a Graph
- Count the paths
- Floyd Warshall
- Flood fill Algorithm
- Techfest and the Queue
- Shortest Source to Destination Path
- Jump Game
- Subset Sum Problem
- Search Pattern (Rabin-Karp Algorithm)
- Bellman-Ford
- Subarrays with sum K
- Capacity To Ship Packages Within D Days
- Substrings of length k with k-1 distinct elements
- Maximum XOR of two numbers in an array
- Construct list using given q XOR queries
- Number of Provinces
- Find duplicate rows in a binary matrix
- Maximum sum of elements not part of LIS
- Find rectangle with corners as 1
- Paths from root with a specified sum
- Remove all occurences of duplicates in a linked list
- Minimize the Heights I
- IPL 2021 - Match Day 2
- Unique Number III
- All Unique Permutations of an array
- Clone an Undirected Graph
- Overlapping Intervals
- Reverse a Stack
- K-th Largest Sum Contiguous Subarray
- Maximum Meetings in One Room
- Buy Maximum Stocks if i stocks can be bought on i-th day
- Next element with greater frequency
- Number Of Enclaves
- Pattern
- Majority Element - More Than n/3
- Koko Eating Bananas
- Search in Rotated Array 2
- Sum of subarray minimum
- Minimal Cost
- Geek's Training
- Smallest Divisor
- Combination Sum II
- Minimum Absolute Difference In BST
- Maximum Sum Combination
- Non-overlapping Intervals
- Floor in BST
- Make array elements unique
- Next Greater Element in Circular Array
- Find the longest string
- Prime List
- Good Stones
- Remove the balls
- Powerful Integer
- Numbers Game
- Another Lucky String
- Geek's Conference
- Minimize the Difference
- Minimize the Array
- Kth common ancestor in BST
- For You
- Maximum Points
- Black Black Tree
- Height of Tower
- Coin Distribution
- Geek's birthday party - II
- Maximum Doublet XOR
- Create this array
- Find Max Inversions
- Maxx Diff
- Count Subarrays with given XOR
- Set Matrix Zeros
- Minimum cost to connect all houses in a city
- Palindromic Substrings
- Find All Triplets with Zero Sum
- Last Moment Before All Ants Fall Out
- Search in an almost Sorted Array
- Find H-Index
- Longest Subarray with Majority Greater than K
- Balancing Consonants and Vowels Ratio
- Subarrays With At Most K Distinct Integers
- K Closest Points to Origin
- Divisible by 13
- Lexicographically Largest String After K Deletions
- Group Balls by Sequence
- Count Unique Vowel Strings
- 2D Difference Array
- Difference Check
- Farthest Smaller Right
- Maximize the minimum difference between k elements
- Search in fully rotated sorted 2D matrix
- Print Linked List elements
- Count Linked List Nodes
- Power of Four
- Size of Binary Tree
- Inorder Traversal
- Count Leaves in Binary Tree
- Check If Circular Linked List
- Postorder Traversal
- Implement stack using array
- Queue using Linked List
- Implement Queue using array
- Doubly linked list Insertion at given position
- Binary Search
- Replace all 0's with 5
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Third largest element
- Preorder Traversal
- Implement strstr
- Sum Except First and Last
- Search a node in BST
- Find Number of Numbers
- Linked List Insertion At End
- Play with an array
- Minimum element in BST
- Is Linked List Length Even?
- Identical Linked Lists
- Find n/k th node in Linked list
- Maximum in Struct Array
- Triplet Family
- Sum of Binary Tree
- Insert in Middle of Linked List
- Product of array elements
- C++ Inheritance introduction
- C++ Call by reference
- Java Generic Class
- Start Coding
- Logical Operators
- Sort and Reverse Vector
- Front to Back
- Zero Converter - Python
- Welcome aboard - Python
- Who has the majority?
- Array insert at index
- Bit Difference
- Power of 2
- Reverse array in groups
- Search an Element in an array
- Searching an element in a sorted array
- Binary Array Sorting
- Binary String
- Check if strings are rotations of each other or not
- Maximum Occuring Character
- Reverse a String
- Union of two arrays
- Check if two arrays are equal or not
- First n Fibonacci
- Display Linked List
- C++ Hello World
- Searching a number
- Missing number
- Balanced Array
- Sort a String
- Sort The Array
- Alternative Sorting
- Change the string
- Maximum product of two numbers
- Check for subsequence
- Remove Consecutive Characters
- Sort in specific order
- Immediate Smaller Element
- Count the characters
- Count type of Characters
- Uncommon characters
- Quick Left Rotation
- Repeated Character
- Length of Last word
- Elements in the Range
- Last index of One
- Merge two strings
- Largest Element in Array
- Rotate Array by One
- Game with nos
- First element to occur k times
- Exceptionally odd
- Ishaan Loves Chocolates
- Array Subset
- Rotating an Array
- Find the smallest and second smallest element in an array
- Min and Max in Array
- Print first letter of every word in the string
- Remove character
- GCD of two numbers
- Find position of set bit
- Set kth bit
- Midori and chocolates
- Find the fine
- Check perfect square
- LCM And GCD
- House Robber
- Sort first half in ascending and second half in descending
- Factorial
- Prime Number
- Sum of first n terms
- Count Squares
- Matching Pair
- List Traversal
- Append To List
- Middle of Three
- Print the Kth Digit
- C++ | A Speed Breaker
- First and last occurrences of X
- Max Min
- Pattern 1
- Pattern 5
- Pattern 6
- Pattern 7
- Pattern 10
- Pattern 11
- Pattern 13
- Data Type
- Friend of x
- Naughty Geek
- Who has the majority?
- Geekland Elections
- Disk Placement
- GeeksforGeeks
- Reverse a linked list
- Occurence of an integer in a Linked List
- Pairwise swap elements of a linked list
- Sort a linked list of 0s, 1s and 2s
- Linked list of strings forms a palindrome
- Detect Loop in linked list
- Remove duplicates from an unsorted linked list
- Sorted insert for circular linked list
- Delete node in Doubly Linked List
- Inorder Traversal
- Reverse a Doubly Linked List
- Bubble Sort
- Selection Sort
- Insertion Sort
- Check for BST
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Delete without head pointer
- Height of Binary Tree
- Check for Balanced Tree
- Nth node from end of linked list
- Middle of a Linked List
- Left View of Binary Tree
- Delete Middle of Linked List
- Decimal Equivalent of Binary Linked List
- Intersection of two 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
- Implement Stack using Linked List
- Insert a node in a BST
- BFS of graph
- Determine if Two Trees are Identical
- Root to leaf path sum
- Print all nodes that don't have sibling
- Implement two stacks in an array
- Run Length Encoding
- Largest subarray of 0's and 1's
- Remove duplicate elements from sorted Array
- Level order traversal Line by Line
- Remove duplicates in array
- Remove every kth node
- Third largest element
- Multiply two linked lists
- You and your books
- Max distance between same elements
- Check whether BST contains Dead End
- Delete a Node in Single Linked List
- Kth largest element in BST
- Minimum distance between two numbers
- Array Duplicates
- Count distinct elements in every window
- Root to leaf paths sum
- Three way partitioning
- Find Common Nodes in two BSTs
- Level order traversal
- Peak element
- Index of an Extra Element
- Insert in a Sorted List
- Split Linked List Alternatingly
- Sum of leaf nodes in BST
- Count More than n/k Occurences
- Max and min element in Binary Tree
- Reverse a string using Stack
- Symmetric Tree
- Delete Alternate Nodes
- Find the Sum of Last N nodes of the Linked List
- Count Pairs whose sum is equal to X
- Find length of Loop
- Median of BST
- Normal BST to Balanced BST
- Linked List Matrix
- Queue Reversal
- Reverse First K elements of Queue
- Magical Number
- Closest Neighbour in BST
- Brothers From Different Roots
- Learn to Comment
- Start Coding - Java
- The New Line - Java
- Learn to Comment - Java
- Precise Format - Java
- Count Odd Even
- Swap the array elements
- Predict the Column
- Xoring and Clearing
- Learning Structs
- Delete Array
- Maximum Area Rectangle
- Sum of Big Integers
- BigInteger Multiply
- Find the Frequency
- Pair Sum in Vector
- Reverse an Array
- Duplicate Elements
- Pair Sum Existence
- If conditional statement- Python
- Check the status - Python
- Mark Even and Odd - Python
- For loop - Python
- For Loop 2- Python
- While loop in Python
- Jumping through While - Python
- Slicing in String - Python
- First Set Bit
- Rightmost different bit
- K-th Bit is Set or Not
- Wave Array
- Frequencies of Limited Range Array Elements
- Equilibrium Point
- Leaders in an array
- Rotate Array
- Floor in a Sorted Array
- Roof Top
- Union of Two Sorted Arrays
- Subarray with given sum
- Intersection of two sorted arrays
- Print adjacency list
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Transpose of Matrix
- Rotate by 90 degree
- Determinant of a Matrix
- Boundary traversal of matrix
- Anagram
- Winner of an election
- Check if string is rotated by two places
- Isomorphic Strings
- Reverse Words
- Minimum indexed character
- Panagram Checking
- Non Repeating Character
- Parenthesis Checker
- Evaluation of Postfix Expression
- Minimum Cost of ropes
- N meetings in one room
- Largest number with given sum
- Reach a given score
- Count ways to N'th Stair
- Count number of hops
- First Repeating Element
- Union of Arrays with Duplicates
- Missing in Array
- Product array puzzle
- Roman Number to Integer
- Intersection of two arrays
- Sort an array of 0s, 1s and 2s
- Maximize Array Value After Rearrangement
- Pascal Triangle
- Non-Repeating Element
- Count the elements
- Rotation
- Find the closest number
- k sorted array
- Maximize sum after K negations
- Common elements
- Find the element that appears once in sorted array
- Split the Array
- Sorted and Rotated Minimum
- Search in a matrix
- Move All Zeroes to End
- Remove all duplicates from a given string
- Minimize the sum of product
- Move all negative elements to end
- Chocolate Distribution Problem
- Search in a Rotated Array
- Count pairs Sum in matrices
- Find Pair Given Difference
- Pairs with difference k
- Swap and Maximize
- Bitonic Point
- Left most and right most index
- Smallest subarray with sum greater than x
- Single Number
- Alternate positive and negative numbers
- Remaining String
- Kth distance
- Palindrome Sentence
- Remove Duplicates
- Nearest multiple of 10
- Reorganize The Array
- Facing the sun
- Twice Counter
- Max Sum without Adjacents
- 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
- The Even Array
- K-Pangrams
- Does array represent Heap
- Modify the Array
- Check if array is sorted
- Sum Pair closest to target
- String's Count
- Longest Common Prefix of Strings
- Longest substring with distinct characters
- Find first repeated character
- Special array reversal
- Min Manipulations to make Strings Anagram
- Min Number of Flips
- Substrings with same first and last characters
- Two sum -Pairs with 0 Sum
- Segregate 0s and 1s
- Play With OR
- Tywin's War Strategy
- Three Great Candidates
- First element to occur k times
- Element with left side smaller and right side greater
- Find the closest pair from two arrays
- Common Divisor
- Array Subset of another array
- Count the Zeros
- Four Elements
- Palindrome String
- Maximum number of partitions that can be sorted individually to make sorted
- Total count
- Searching in an array where adjacent differ by at most k
- Smallest greater elements in whole array
- Pair with given sum in a sorted array
- Pattern Searching
- Count number of words
- Print Bracket Number
- Divisible by 7
- Odd Even Problem
- Binary representation of next number
- Generate binary string
- Padovan Sequence
- Extract the Number from the String
- Minimum Operations
- Check if a number is divisible by 8
- Adding Array Elements
- Number of 1 Bits
- Find the Highest number
- Armstrong Numbers
- Reverse Bits
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Ceil The Floor
- Swap two nibbles in a byte
- Number of factors
- Count Digits
- Maximum Sum Problem
- The FizzBuzz Program
- Party of Couples
- Maximize dot product
- Shortest path from 1 to n
- Sum of all divisors from 1 to n
- Sieve of Eratosthenes
- Count numbers containing 4
- Sum The List
- Length of The List
- Decrement List Values
- Trail of ones
- Happy Number
- Reach the Nth point
- Perfect Numbers
- Less Than
- Separate Even Odd
- Average
- Maximize Toys
- Largest number possible
- Recamans sequence
- Compare two fractions
- Form a number divisible by 3 using array digits
- Least Prime Factor
- Reverse Coding
- Find Nth root of M
- Recursive sequence
- Juggler Sequence
- Summed Matrix
- Arithmetic Number
- Row with minimum number of 1's
- Coverage of all Zeros in a Binary Matrix
- Inorder Traversal and BST
- Print Pattern
- Array to BST
- Sum of dependencies in a graph
- Find maximum volume of a cuboid
- Plus One
- Reverse Bits
- Search insert position of K in a sorted array
- Queue using stack
- Split the binary string into substrings with equal number of 0s and 1s
- Smallest window containing 0, 1 and 2
- Insert an Element at the Bottom of a Stack
- Sort a k sorted doubly linked list
- Choice
- Pattern 4
- Pattern 14
- Pattern 15
- Pattern 16
- Print N to 1 without loop
- Print GFG n times
- Fibonacci series up to Nth term
- Largest odd number in string
- Maximum Nesting Depth of the Parentheses
- Stock Buy and Sell – Max one Transaction Allowed
- Divisor Game
- Introduction to Trees
- Pass by Reference and Value
- Make array elements unique
- Find the first node of loop in linked list
- Type it!
- Remainder on dividing by 11
- Minimum Integer
- Seating Arrangement
- Unique Number of Occurrences
- Sorting Items
- Minimise the Distance
- Max Splits
- Minimize Array Score
- Maximum Happiness
- MAX Array
- Illuminate the hall
- Minimum Distance
- Count Indices
- Return To Root
- Magic Array
- Not a palindromic string
- It's Payday
- Chocolate Distribution
- Beautiful Bits
- Equality
- Minimum Number of Elements
- Jumping Towers
- Character Matrix Conundrum
- Check for Consecutive
- Prefix Distinct
- Frequency of every Element
- Geek & Geekina Purchasing Ice Cream
- Eye's Contact
- Super Palindrome
- Find Mode in BST
- Bob's Impression
- And is Equal to OR
- Reach Alice
- Two Smallests in Every Subarray
- Split an array into two equal Sum subarrays
- Largest Pair Sum
- First Word
- Count Minimum Swaps
- Perfect Meeting
- Good Substrings
- Winner Team
- Geek String
- Maximum Product
- Two Swaps
- Maximize partitions in a String
- Count pairs with given sum
- Union of Two Sorted Arrays with Distinct Elements
- Intersection of Two arrays with Duplicate Elements
- Find All Triplets with Zero Sum
- Search in a row-wise sorted matrix
- Find Only Repetitive Element from 1 to n-1
- Unique Number I
- Check for Binary
- Print the pattern | Set-1
- Palindromic Array
- C++ Pointers ( Incrementing a variable) | Set 1
- C++ Functions (Sum of numbers) | Set 1
- Print alternate elements of an array
- Print 1 To N Without Loop
- Sum of Array Elements
- Perfect Arrays
- Find Index
- Sum of Array
- Sum of Series
- Print Elements of Array
- At least two greater elements
- Value equal to index value
- Check String
- Convert a list of characters into a String
- Remove characters from alphanumeric string
- Count of camel case characters
- Remove vowels from string
- Compete the skills
- Count type of Characters
- Swap kth elements
- Reversing the vowels
- Lower case to upper case
- Smaller and Larger
- Average in a stream
- Remove Spaces
- Print the left element
- Display longest name
- Arrays (Sum of array)
- C++ Array (print an element) | Set 2
- Upper case conversion
- Split Strings
- Java Arrays | Set 1
- C++ Strings
- Count of smaller elements
- Pattern of Strings
- Convert String to LowerCase
- Delete alternate characters
- Reverse a String
- Java Strings | Set 1
- Java Substring
- GCD of two numbers
- C++ if-else (Decision Making)
- Addition of Two Numbers
- C++ Input / Output
- Odd or Even
- Vowel or Not
- if-else (Decision Making)
- Java Hello World
- Java Input/Output
- Armstrong Numbers
- Mean
- Find the median
- Sum Of Digits
- Palindrome
- Greatest of three numbers
- Reverse digits
- Sum of elements in a matrix
- Find difference between sum of diagonals
- Multiplication Table
- Remainder Evaluation
- Print 1 to n without using loops
- Swap two numbers
- Sum Palindrome
- nPr
- Addition of two square matrices
- Diagonal sum
- Java Switch Case statement
- Binary Tree to DLL
- Clone a linked list with next and random pointer
- Alien Dictionary
- Smallest range in K lists
- Fixing Two nodes of a BST
- Trapping Rain Water
- Max Circular Subarray Sum
- Merge Without Extra Space
- Smallest window in a string containing all the characters of another string
- Histogram Max Rectangular Area
- Count Pairs in an Array
- The Painter's Partition Problem-II
- Count Smaller elements
- Longest Prefix Suffix
- Number of distinct subsequences
- Sub-arrays with equal number of occurences
- Edit Distance
- Minimum Points To Reach Destination
- Strictly Increasing Array
- Median in a row-wise sorted Matrix
- Longest valid Parentheses
- Rohan's Love for Matrix
- Articulation Point - II
- Word Wrap
- Maximum sum Rectangle
- Split Array Largest Sum
- Kth Smallest Number in Multiplication Table
- Candy
- Better String
- Binary String Conundrum
- Meeting Rooms III
- Minimum Weight Cycle
- Longest Periodic Proper Prefix
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