nomitsingh95y
starstarstarstar
STREAK
70/1446
days
Longest streak/Global longest streak
Language Used
Java, C++, C, Python
Coding Score
2407
Problem Solved
813
Contest Rating
1801
Campus Mantri
harikeso6du15 points
Contributor
15 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
13 submissions in current year
SCHOOL (1)
BASIC (50)
EASY (302)
MEDIUM (397)
HARD (63)
- Reverse alternate nodes in Link List
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Add Number Linked Lists
- 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
- Merge Sort
- Quick Sort
- Binary Tree from Inorder and Postorder
- Diameter of a Binary Tree
- Heap Sort
- Sum Tree
- Construct Binary Tree from Parent Array
- Flattening a Linked List
- LCA in Binary Tree
- Maximum difference between node and its ancestor
- Absolute List Sorting
- Two Stacks in an Array
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological sort
- Find kth element of spiral matrix
- Max sum in the configuration
- Get Min from Stack
- Gas Station
- Linked List to Binary Tree
- Check if subtree
- Kth element in Matrix
- Remove loop in Linked List
- Additive sequence
- Largest BST
- Sorted subsequence of size 3
- Multiply two strings
- Minimum Swaps to Sort
- Implement Atoi
- Palindrome Linked List
- Print matrix in diagonal pattern
- Rat in a Maze Problem - I
- Closest in BST
- Merge two BST 's
- Minimum four sum subsequence
- Count distinct elements in every window
- Merge k Sorted Arrays
- Root to leaf paths sum
- Bridge edge in a graph
- Find triplets with zero sum
- Sort a stack
- Duplicate Subtree
- Find Common Nodes in two BSTs
- Union of Two Linked Lists
- Euler Circuit in an Undirected Graph
- Ancestors in Binary Tree
- Root to Leaf Paths
- Populate Inorder Successor for all nodes
- Linked List that is Sorted Alternatingly
- Leftmost and rightmost nodes of binary tree
- Count the nodes at distance K from leaf
- Vertical sum
- Isomorphic Trees
- Predecessor and Successor
- Children Sum in a Binary Tree
- Diagonal sum in binary tree
- Normal BST to Balanced BST
- Duplicate Subtrees
- Sum of nodes on the longest path
- Kth Ancestor in a Tree
- ZigZag Tree Traversal
- Vertical Width of a Binary Tree
- Maximum sum of Non-adjacent nodes
- Mother Vertex
- Gray to Binary Conversion
- Tower Of Hanoi
- Smallest Positive Missing
- Power Of Numbers
- Maximum occured integer
- Possible Words From Phone Digits
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Maximum Index
- Stock buy and sell
- Rotate Array
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Two Repeated Elements
- Union of 2 Sorted Arrays
- Indexes of Subarray Sum
- Triplet Sum in Array
- Number of pairs
- Merge Without Extra Space
- Make Matrix Beautiful
- Boolean Matrix
- Spirally traversing a matrix
- Search in a sorted Matrix
- Determinant of a Matrix
- Subarray with 0 sum
- Sort Elements by Decreasing Frequency
- Longest Consecutive Subsequence
- Case-specific Sorting of Strings
- Stock span problem
- Next Greater Element
- K Sized Subarray Maximum
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Combination Sum
- Unique Subsets
- M-Coloring Problem
- Minimum Jumps
- Stickler Thief
- Ways to Reach the n'th Stair
- Optimal Strategy For A Game
- Sum of all substrings of a number
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Lucky Numbers
- Sort according to an Array
- Allocate Minimum Pages
- Zero Sum Subarrays
- Kth Smallest
- Implement Trie
- Nth Catalan Number
- Container With Most Water
- Rotate by 90 degree
- Top K Frequent in Array
- Closest Three Sum
- Word Break
- Stock Buy and Sell – Multiple Transaction Allowed
- Word Search
- 4 Sum - All Quadruples
- Sort 0s, 1s and 2s
- Taking 1 out of 3 consecutives
- Complement
- 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
- Pair array product sum
- Equivalent Sub-Arrays
- Single Among Doubles in a Sorted
- Consecutive 1's not allowed
- Painting the Fence
- Search in Rotated Sorted Array
- Sum of bit differences
- Max Score from Subarray Mins
- 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
- Row with max 1s
- Swapping pairs make sum equal
- Check if frequencies can be equal
- Column name from a given column number
- Substrings with K Distinct
- Form a palindrome
- Nuts and Bolts Problem
- Longest Subarray with Sum K
- Cutting Binary String
- Sum of two large numbers
- Max Sum without Adjacents
- Factorials of large numbers
- Find length of longest subsequence
- Find the N-th character
- Length of the longest substring
- k largest elements
- Longest Common Substring
- Smallest distinct window
- Longest substring with distinct characters
- Longest Substring with K Uniques
- Longest Palindrome in a String
- K-th element of two Arrays
- Arranging the array
- String formation from substring
- Triplets with Smaller Sum
- Rod Cutting
- K closest elements
- Minimum swaps and K together
- LCS of three strings
- Largest Sum Subarray of Size at least K
- First negative in every window of size k
- Maximum difference of zeros and ones in binary string
- Minimum sum
- Build the smallest
- Minimize the Heights II
- Transform to prime
- First and Last Occurrences
- A difference of values and indexes
- Print N-bit binary numbers having more 1s than 0s
- Find patterns
- Minimum Swaps for Bracket Balancing
- Permutations of a String
- CamelCase Pattern Matching
- Sum of Products
- Subarrays Product Less than K
- Unique Number II
- Modular Exponentiation
- Game of XOR
- Maximum Tip Calculator
- Modified Game of Nim
- Maximize dot product
- Minimum cost to fill given weight in a bag
- Coin Change (Count Ways)
- Sequence of Sequence
- Santa Banta
- String Subsequence
- Mobile numeric keypad
- Gold Mine Problem
- Coin Change (Minimum Coins)
- Perfect Sum Problem
- Smallest number
- Trail of ones
- K-Palindrome
- Longest subsequence-1
- Count ways to N'th Stair(Order does not matter)
- Minimum Cost To Make Two Strings Identical
- Knapsack with Duplicate Items
- nCr
- Geek and its Game of Coins
- Maximum path sum in matrix
- Minimum steps to destination
- Partition Equal Subset Sum
- Get Minimum Squares
- Count possible ways to construct buildings
- Count digit groupings of a number
- Jumbled Strings
- Array Pair Sum Divisibility Problem
- Matchsticks game
- Subset Sums
- Akku and Binary Numbers
- Number of paths in a matrix with k coins
- Game with String
- Count even length
- Find the Safe Position
- Smith Number
- Next Permutation
- Missing number in matrix
- How Many X's?
- Exit Point in a Matrix
- Longest Repeating Subsequence
- Longest alternating subsequence
- Total Decoding Messages
- Stream First Non-repeating
- Largest square formed in a matrix
- Product of Primes
- 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
- Flood fill Algorithm
- Techfest and the Queue
- Largest subsquare surrounded by X
- Divisibility tree
- Recursively Remove Adjacent Duplicates
- Search Pattern (Rabin-Karp Algorithm)
- Subarrays with sum K
- Remove K Digits
- Maximum XOR of two numbers in an array
- Construct list using given q XOR queries
- Prefix match with other strings
- Find duplicate rows in a binary matrix
- Single valued subtree
- Paths from root with a specified sum
- Shortest Prime Path
- Shortest Prime Path
- Insertion Sort for Singly Linked List
- Remove all occurences of duplicates in a linked list
- Minimize the Heights I
- Subsets
- Anti Diagonal Traversal of Matrix
- 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
- Reverse a Stack
- Maximum product subset of an array
- K-th Largest Sum Contiguous Subarray
- Maximum Meetings in One Room
- Max Equal sum of 3 Stacks
- Buy Maximum Stocks
- Smallest sum contiguous subarray
- Array Removals
- Find shortest safe route in a matrix
- Stack Permutations
- Largest subtree sum in a tree
- Wine Buying and Selling
- Graph is Tree or Not
- Replace every element with the least greater element on its right
- Construct Binary Tree from String with bracket representation
- Number Of Enclaves
- Eventual Safe States
- City With the Smallest Number of Neighbors at a Threshold Distance
- Path With Minimum Effort
- Longest subarray with Atmost two distinct integers
- Asteroid Collision
- Combination Sum II
- Shortest Path in Weighted undirected graph
- Task Scheduler
- Hands of Straights
- Minimum Absolute Difference In BST
- Lemonade Change
- Maximum Sum Combination
- Partitions with Given Difference
- Floor in BST
- GCD Array
- Minimize number of Students to be removed
- Maximum Value
- Shortest Prime Path
- 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
- 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
- Water the plants
- Geeks Island
- Apple Sequences
- Connect Nodes at Same Level
- Unique Paths in a Grid
- Fill the Matrix
- Number of Good Components
- Best Node
- Update Queries
- Good Stones
- Maximum Intersecting Lines
- String rp or pr
- Knight in Geekland
- Count Cyclic Paths
- Maximum Triplet product
- Special Palindrome Substrings
- Maximum Possible Value
- Anagrams in Linked List
- Yet another query problem
- Geek hates too many 1s
- Maximum Length
- Remove the balls
- Bheem Wants Ladoos
- Prefix Suffix String
- Smaller Sum
- Nearest smaller tower
- Another Coin Change Problem
- Geek's Village and Wells
- Find Number
- 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
- Help Big Pig
- Modify Linked List-1
- Gathering Boulders
- Find Kth permutation
- Fraction pairs with sum 1
- Tree Transformation
- Geeks Engagement
- New Year Resolution
- Prime Sum Subtrees
- Grinding Geek
- Minimize the Difference
- Minimize the Array
- Pairs violating the BST property
- Kth common ancestor in BST
- Maximum Valid Subsequence Score
- Maximum Doublet XOR
- String Replacement
- Traffic Lights
- Longest Beautiful Subarray
- Longest Non-Decreasing Subarray - I
- Reverse 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
- Split a Linked List into two halves
- Delete in a Doubly Linked List
- Inorder Traversal
- Insertion Sort
- Check for BST
- Right View of Binary Tree
- Mirror Tree
- Delete without head pointer
- 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
- Decimal Equivalent of Binary Linked List
- Intersection Sorted Linked Lists
- Find Transition Point
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Level Order in spiral form
- Reverse Level Order Traversal
- Stack using Linked List
- BFS of graph
- Identical Trees
- Root to leaf path sum
- Square Root
- Nodes without a Sibling
- 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
- Odd even level difference
- Binary Tree to BST
- Unique rows in boolean matrix
- Leaves at Same Level or Not
- Third largest element
- Josephus problem
- You and your books
- Repetition of k length substring
- Delete in a Singly Linked List
- Minimum distance in an Array
- Array Duplicates
- Three way partitioning
- Level order traversal
- Index of an Extra Element
- Insert in a Sorted List
- Sum of leaf nodes in BST
- More than n/k Occurrences
- Reverse Using Stack
- Symmetric Tree
- Huffman Decoding-1
- Count Pairs whose sum is equal to X
- Queue Reversal
- Reverse first K of a Queue
- Remove Half Nodes
- Closest Neighbour in BST
- Delete Mid of a Stack
- Taking input - Java
- Swap the array elements
- Xoring and Clearing
- Pair in Java
- Maximum Area Rectangle
- Sum of Big Integers
- BigInteger Multiply
- BigInteger mod
- Frequency in Queue
- Frequency Game
- First Set Bit
- Rightmost different bit
- Power of 2
- Wave Array
- Frequencies in a Limited Array
- Equilibrium Point
- Array Leaders
- Print adjacency list
- Transpose of Matrix
- Rotate by 90 degree
- Matrix Boundary Traversal
- Anagram
- Winner of an election
- String Rotated by 2 Places
- Strings Rotations of Each Other
- Isomorphic Strings
- Reverse Words
- Minimum indexed character
- Panagram Checking
- Non Repeating Character
- Parenthesis Checker
- Minimum Cost of ropes
- N meetings in one room
- Reach a given score
- Count ways to N'th Stair
- 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
- Count the elements
- Find Kth Rotation
- Find the closest number
- Sort by Set Bit Count
- Maximize sum after K negations
- Pairs with certain difference
- Common in 3 Sorted Arrays
- 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
- Minimize the sum of product
- Chocolate Distribution Problem
- Count pairs Sum in matrices
- Count the triplets
- Find Pair Given Difference
- Drive the car
- Swap and Maximize
- Bitonic Point
- Left most and right most index
- Smallest subarray with sum greater than x
- Alternate Positive Negative
- Remaining String
- Check if a given string is a rotation of a palindrome
- Remove Consecutive Characters
- Convert a sentence into its equivalent mobile numeric keypad sequence
- Remove b and ac from a given string
- Count Alphabets
- Ordering of strings
- Rearrange string as alternate x and y occurences
- Arya's Long String
- Remove Duplicates
- Reverse alternate words
- 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
- K-Pangrams
- Find the left over element
- Reversing the equation
- Convert an array to reduced form
- Find missing in second array
- String's Count
- Longest Common Prefix of Strings
- First Repeated Character
- Min Number of Flips
- Sum of distinct elements for a limited range
- Two sum -Pairs with 0 Sum
- Segregate 0s and 1s
- Play With OR
- At Least K Occurrences
- Find the closest pair from two arrays
- Merge two binary Max heaps
- Java Arrays | Set 1
- Palindrome String
- Search array with adjacent diff at most k
- Shop in Candy Store
- Minimum changes to make all substrings distinct
- Sort string
- Odd Even Problem
- Binary representation of next number
- Convertible string
- Is Binary Number Multiple of 3
- Divisibility by 8
- Adding Array Elements
- Number of 1 Bits
- Find the Highest number
- Armstrong Numbers
- Pairs with Positive Negative values
- Reverse Bits
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Swap two nibbles in a byte
- Copy Set Bits in Range
- Toggle bits in the given range
- Product of Prime Factors
- Maximum Sum Problem
- Minimum number of deletions to make a sorted sequence
- Party of Couples
- Count numbers containing 4
- Find maximum number
- Reach the Nth point
- Break a number
- Kth Prime Factor
- Maximize Toys
- Raju and coins
- Grouping values
- Check if it is possible to survive on Island
- Recamans sequence
- Primorial of a number
- The Palindrome Pattern
- Form a number divisible by 3 using array digits
- Least Prime Factor
- Sum of First N Natural Numbers
- Find nth root of m
- Recursive sequence
- Juggler Sequence
- Summed Matrix
- Maximum Diamonds
- Arithmetic Number
- Surround the 1's
- Maximum Collatz sequence length
- Trace Path
- Help the Old Man!!!
- Print Pattern
- Primes sum
- Array to BST
- Sum of dependencies in a graph
- Sum of k smallest elements in BST
- License Key Formatting
- Count the Substrings
- Find all possible paths from top to bottom
- Split the binary string into substrings with equal number of 0s and 1s
- Smallest Subset with Greater Sum
- Minimum Sum of Absolute Differences of Pairs
- Smallest window containing 0, 1 and 2
- Move Last Element to Front of a Linked List
- Insert an Element at the Bottom of a Stack
- 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
- Geek & Geekina Purchasing Ice Cream
- Toggle
- Split the String
- Last cell in a Matrix
- Balloon Everywhere
- Range OR
- Reverse both parts
- Cutting Rectangles
- Frogs and Jumps
- Make the array beautiful
- Is it Fibonacci
- Max Level Sum in Binary Tree
- Binary matrix having maximum number of 1s
- Maximum Identical Bowls
- Bus Conductor
- Wifi Range
- Minimum Number
- Seating Arrangement
- String Mirror
- Make Palindrome
- Binary Modulo
- Total Cuts
- Bit Magic
- Array Operations
- Dominant Pairs
- Total Traversal Time
- Strong Students in School
- Minimum Thorns
- Ticket Counter
- Geek's Plants
- Weight Problem
- Level of Node in Tree
- Unique Number of Occurrences
- Balloon Everywhere
- Minimise the Distance
- Max Splits
- Check Anagram Existence
- Beautiful Number
- Strong Students in School
- Find Bots on Geeklandster
- Is it a Leap Year
- Virus Infection
- Divide and Rule
- Play of 3 Glasses!
- Return To Root
- Find the enemies
- Minimum Number of Elements
- String Reboot
- Character Matrix Conundrum
- Prefix Distinct
- Eye's Contact
- Geekland Fair
- Super Palindrome
- Bob's Impression
- Validate distribution
- Find Smallest
- Distribute Balls
- Boundary Sum of Matrix
- Maximum Product
- Linked List Group Reverse
- Reorder List
- Clone List with Next and Random
- Min distance between two given nodes of a Binary Tree
- Subtraction in Linked List
- Distinct occurrences
- Partition array to k subsets
- Nodes at given distance in binary tree
- Huffman Decoding
- String Permutations
- Trapping Rain Water
- Solve the Sudoku
- Median of 2 Sorted Arrays of Different Sizes
- Next Smallest Palindrome
- Count Pairs in an Array
- Search Pattern (KMP-Algorithm)
- Count Smaller elements
- Longest Prefix Suffix
- Number of distinct subsequences
- Wildcard string matching
- Longest repeating and non-overlapping substring
- Minimum Points To Reach Destination
- Next Happy Number
- Strictly Increasing Array
- Generalised Fibonacci numbers
- Boolean Parenthesization
- Possible Paths in a Tree
- N-Queen Problem
- Brackets in Matrix Chain Multiplication
- Smallest Positive Integer that can not be represented as Sum
- Reverse a sublist of a linked list
- Distribute candies in a binary tree
- Split Array Largest Sum
- Scrambled String
- Maximum Number of Toys
- 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
- Count Lucky Permutations
- Count the Substring
- Select Nodes
- Largest Sum Cycle
- Fixing Two swapped nodes of a BST
- Avoid Explosion
- Walls Coloring II
- Redundant Parenthesis
- Partition the Array
- Count Binary Strings With No Consecutive 1s
- Divide in Incremental Groups
- Max min Height
- Minimum BST Sum Subtree
- Special Digits
- Cake Distribution Problem
- Min Time
- Game Of Subsets
- Geekina Hate 1s
- Making A Large Island
- Longest Increasing Path in Tree
- Count Leaves in Binary Tree
- Postorder Traversal
- Implement stack using array
- Queue using Linked List
- Queue Using Array
- Preorder Traversal
- First Occurence
- Palindromic Array
- Peak element
- Minimum element in BST
- Identical Linked Lists
- Count Non-Leaf Nodes in Tree
- Java Inheritance
- Bit Difference
- Number is sparse or not
- Print 1 To N Without Loop
- Reverse array in groups
- Array Search
- Reverse a String
- Keypad typing
- First n Fibonacci
- Sum of Array
- Sum of Natural Numbers
- Print Elements of Array
- Value equal to index value
- The problem of identical arrays
- Uncommon characters
- Length of Last word
- Last index of One
- Crazy String
- Largest Element in Array
- Rotate Array by One
- Array Subset
- Min and Max in Array
- Print first letter of every word in the string
- Magical String[Duplicate Problem]
- Check an Integer is power of 3 or not
- Find position of set bit
- Set kth bit
- Count Squares
- Middle of Three
- Euler Totient Sum and Divisors
- Evaluate the expression
- Sorted matrix
- Max Min
- Time Travel
- Geekland Elections
- Valid Triangle
- Maximize Expression
- Disk Placement
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