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sirvinaysy60t
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47 submissions in current year
SCHOOL (0)
BASIC (5)
EASY (158)
MEDIUM (275)
HARD (55)
- Reverse alternate nodes in Link List
- Rotate a Linked List
- Add Number Linked Lists
- Add 1 to a Linked List Number
- Merge 2 sorted linked list in reverse order
- Detect Loop in linked list
- Quick Sort on Linked List
- Insert in Sorted Circular Linked List
- Check for BST
- 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
- Merge two sorted linked lists
- Sum Tree
- Construct Binary Tree from Parent Array
- Tree Boundary Traversal
- Lowest Common Ancestor in a BST
- Max sum path in two arrays
- The Celebrity Problem
- Find the number of islands
- Max sum in the configuration
- Wildcard Pattern Matching
- Linked List to Binary Tree
- Validate an IP Address
- Remove loop in Linked List
- Additive sequence
- Largest BST
- Sorted subsequence of size 3
- Implement Atoi
- Maximum Difference
- Palindrome Linked List
- Print matrix in diagonal pattern
- Rat in a Maze
- BST with Dead End
- Merge two BST 's
- Count distinct elements in every window
- Root to leaf paths sum
- Duplicate Subtree
- k-th Smallest in BST
- Find Common Nodes in two BSTs
- Level order traversal
- Peak element
- Euler Circuit in an Undirected Graph
- Euler circuit and Path
- Ancestors in Binary Tree
- Binary Tree to CDLL
- Pair Sum in BST
- Root to Leaf Paths
- Populate Inorder Successor for all nodes
- XOR Linked List
- Linked List that is Sorted Alternatingly
- K Sum Paths
- Construct Tree from Inorder & Preorder
- Arrange Consonants and Vowels
- Count the nodes at distance K from leaf
- Vertical sum
- Insert in Sorted way in a Sorted DLL
- Maximum path sum
- Children Sum in a Binary Tree
- Diagonal sum in binary tree
- Find length of Loop
- Deletion in Circular Linked List
- Normal BST to Balanced BST
- Duplicate Subtrees
- Sum of nodes on the longest path
- ZigZag Tree Traversal
- Vertical Width of a Binary Tree
- Gray to Binary Conversion
- Smallest Positive Missing
- Maximum occured integer
- Wave Array
- Rotate and delete
- Maximum Index
- Rotate Array
- Kadane's Algorithm
- Count Inversions
- Two Repeated Elements
- Union of 2 Sorted Arrays
- Indexes of Subarray Sum
- Count the number of possible triangles
- Number of pairs
- Merge Without Extra Space
- Level of Nodes
- Boolean Matrix
- Spirally traversing a matrix
- Search in a sorted Matrix
- Rotate by 90 degree
- Determinant of a Matrix
- Subarray with 0 sum
- Subarray range with given sum
- Sort Elements by Decreasing Frequency
- Longest Consecutive Subsequence
- Strings Rotations of Each Other
- K Sized Subarray Maximum
- Minimum Cost of ropes
- Nearly sorted
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Jumps
- Detect Cycle using DSU
- Optimal Strategy For A Game
- Sum of all substrings of a number
- 0 - 1 Knapsack Problem
- Allocate Minimum Pages
- Kth Smallest
- Implement Trie
- Shortest Common Supersequence
- Maximize The Cut Segments
- Print Anagrams Together
- 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
- Paths to reach origin
- Pascal Triangle
- 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
- Consecutive 1's not allowed
- Split the Array
- Pythagorean Triplet
- Painting the Fence
- Search in Rotated Sorted Array
- Count pairs Sum in matrices
- Sum of bit differences
- Form the Largest Number
- 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
- 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
- Max Sum without Adjacents
- Shuffle integers
- Find the N-th character
- k largest elements
- Sum of XOR of all pairs
- Longest Common Substring
- Longest substring with distinct characters
- K-th element of two Arrays
- K closest elements
- LCS of three strings
- Largest Sum Subarray of Size at least K
- Minimum sum
- Not a subset 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
- Sum of Products
- Unique Number II
- Bleak Numbers
- Modular Exponentiation
- Game of XOR
- Maximum Tip Calculator
- Modified Game of Nim
- Minimum number of deletions and insertions
- Maximize dot product
- Max Sum Increasing Subsequence
- Minimum cost to fill given weight in a bag
- Coin Change (Count Ways)
- Sequence of Sequence
- String Subsequence
- Mobile numeric keypad
- Gold Mine Problem
- Smallest number
- Trail of ones
- K-Palindrome
- Longest subsequence-1
- Power Set
- Count ways to N'th Stair(Order does not matter)
- Minimum Cost To Make Two Strings Identical
- Knapsack with Duplicate Items
- Geek and its Game of Coins
- Minimum steps to destination
- Count possible ways to construct buildings
- Count digit groupings of a number
- Array Pair Sum Divisibility Problem
- Prime Pair with Target Sum
- Number of paths
- Nth Natural Number
- Number of paths in a matrix with k coins
- Game with String
- Smith Number
- Next Permutation
- Maximum sum of hour glass
- How Many X's?
- Exit Point in a Matrix
- Longest alternating subsequence
- Rotate Each Row of Matrix K Times
- Check If two Line segments Intersect
- Number of Rectangles in a Circle
- Largest square formed in a matrix
- Integral Points Inside Triangle
- Transitive closure of a Graph
- Rohan's Love for Matrix
- Traverse All Edges And Vertices
- Array to BST
- Techfest and the Queue
- Largest subsquare surrounded by X
- Divisibility tree
- Subarrays with sum K
- Remove K Digits
- Construct list using given q XOR queries
- Find duplicate rows in a binary matrix
- Paths from root with a specified sum
- Shortest Prime Path
- Sort for Singly Linked List
- Remove all occurences of duplicates in a linked list
- Minimize the Heights I
- Anti Diagonal Traversal of Matrix
- Unique Number III
- All Unique Permutations of an array
- Course Schedule
- Clone an Undirected Graph
- Overlapping Intervals
- Maximum product subset of an array
- Maximum Meetings in One Room
- Buy Maximum Stocks
- Find shortest safe route in a matrix
- Graph is Tree or Not
- Sort a k sorted doubly linked list
- Number Of Enclaves
- Eventual Safe States
- City With the Smallest Number of Neighbors at a Threshold Distance
- Path With Minimum Effort
- Shortest Path in Undirected Graph
- Majority Element - More Than n/3
- Minimal Cost
- Aggressive Cows
- Combination Sum Without Repetition
- Shortest Path in Weighted undirected graph
- Minimum Absolute Difference In BST
- Maximum Sum Combination
- Non-overlapping Intervals
- Insert Interval
- Partitions with Given Difference
- Floor in BST
- Make array elements unique
- Find the first node of loop in linked list
- Minimum repeat to make substring
- Water the plants
- Number of Good Components
- New Year Resolution
- Grinding Geek
- Flatten BST to sorted list
- Minimize the Difference
- Pairs violating the BST property
- Kth common ancestor in BST
- Kth Missing Positive Number in a Sorted Array
- Count Subarrays with given XOR
- Set Matrix Zeros
- Count pairs with given sum
- Find All Triplets with Zero Sum
- Split array in three equal sum subarrays
- Find H-Index
- Count all triplets with given sum in sorted array
- Implement Pow
- K Closest Points to Origin
- Linked List Group Reverse
- 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
- Subtraction in Linked List
- Distinct occurrences
- LRU Cache
- AVL Tree Insertion
- Alien Dictionary
- Merge Sort on Doubly Linked List
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Trapping Rain Water
- Max Circular Subarray Sum
- Smallest window containing all characters
- Solve the Sudoku
- Minimum Cost Path
- Burning Tree
- Count Pairs in an Array
- Search Pattern
- Count Smaller elements
- Longest Prefix Suffix
- Number of distinct subsequences
- Wildcard string matching
- Circle of strings
- Longest repeating and non-overlapping substring
- Sum-string
- Sub-arrays with equal number of occurences
- Edit Distance
- Minimum Points To Reach Destination
- Palindromic Partitioning
- Strictly Increasing Array
- Generalised Fibonacci numbers
- Boolean Parenthesization
- Longest valid Parentheses
- Possible Paths in a Tree
- N-Queen Problem
- Brackets in Matrix Chain Multiplication
- Search Pattern (Rabin-Karp Algorithm)
- Find all Critical Connections in the Graph
- Distribute Candies
- Split Array Largest Sum
- Find the String
- Stock Buy and Sell – Max 2 Transactions Allowed
- Min Chars to Add for Palindrome
- Largest rectangular sub-matrix whose sum is 0
- Vertex Cover
- Maximum Connected group
- Minimize Max Distance to Gas Station
- Candy
- Account Merge
- Better String
- Geekina Hate 1s
- Making A Large Island
- Reverse a linked list
- Frequency in a Linked List
- Pairwise swap elements of a linked list
- Linked list of strings forms a palindrome
- Delete in a Doubly Linked List
- Inorder Traversal
- Reverse a Doubly Linked List
- K distance from root
- Mirror Tree
- Height of Binary Tree
- Balanced Tree Check
- Middle of a Linked List
- Left View of Binary Tree
- Delete Middle of Linked List
- Decimal Equivalent of Binary Linked List
- Intersection Sorted Linked Lists
- Find Transition Point
- Reverse Level Order Traversal
- Identical Trees
- Root to leaf path sum
- Square Root
- Nodes without a Sibling
- Largest subarray of 0's and 1's
- Remove Duplicates from an array
- Toeplitz matrix
- Remove every k'th node
- Leaves at Same Level or Not
- Multiply two linked lists
- You and your books
- Max distance between same elements
- Minimum distance in an Array
- Array Duplicates
- Three way partitioning
- Index of an Extra Element
- Insert in a Sorted List
- Split Linked List Alternatingly
- Minimum element 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
- Linked List Matrix
- Reverse first K of a Queue
- Remove Half Nodes
- Closest Neighbour in BST
- Find Sum Pairs Across Two BSTs
- Swap the array elements
- Predict the Column
- Xoring and Clearing
- Reverse an Array
- Rightmost different bit
- Check K-th Bit
- Frequencies in a Limited Array
- Equilibrium Point
- Roof Top
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Matrix Boundary Traversal
- Anagram
- Winner of an election
- String Rotated by 2 Places
- Isomorphic Strings
- Reverse Words
- Panagram Checking
- Non Repeating Character
- Parenthesis Checker
- N meetings in one room
- Reach a given score
- Count ways to N'th Stair
- Union of Arrays with Duplicates
- Missing in Array
- Product array puzzle
- Roman Number to Integer
- Max Value Permutation
- Missing And Repeating
- Count the elements
- Find the closest number
- Sorted and Rotated Minimum
- Search in a Row-Column sorted matrix
- Move All Zeroes to End
- String Duplicates Removal
- Find Pair Given Difference
- Pairs with difference k
- Swap and Maximize
- Single Number
- Alternate Positive Negative
- Remaining String
- Kth distance
- Remove Duplicates
- Nearest multiple of 10
- Reorganize The Array
- Facing the sun
- Second Largest
- Convert array into Zig-Zag fashion
- Two Sum - Pair with Given Sum
- Number of occurrence
- K-Pangrams
- Does array represent Heap
- Modify the Array
- Sum Pair closest to target
- Find missing in second array
- String's Count
- Longest Common Prefix of Strings
- Segregate 0s and 1s
- Play With OR
- At Least K Occurrences
- Find the closest pair from two arrays
- Total count
- Pair with given sum in a sorted array
- Print Bracket Number
- Odd Even Problem
- Binary representation of next number
- Padovan Sequence
- Extract the Number from the String
- Minimum Operations
- Divisibility by 8
- Find the Highest number
- Armstrong Numbers
- Reverse Bits
- Max Sum Subarray of size K
- Swap two nibbles in a byte
- Maximum Sum Problem
- Party of Couples
- Shortest path from 1 to n
- Sum 1 to n Divisors
- Count numbers containing 4
- Reach the Nth point
- Recamans sequence
- The Palindrome Pattern
- Compare two fractions
- Form a number divisible by 3 using array digits
- Recursive sequence
- Juggler Sequence
- Summed Matrix
- Row with Minimum 1s
- Coverage of all Zeros in a Binary Matrix
- Inorder Traversal and BST
- Letters Collection
- Print Pattern
- Sum of dependencies in a graph
- Find maximum volume of a cuboid
- Smallest window containing 0, 1 and 2
- Insert an Element at the Bottom of a Stack
- Fibonacci series up to Nth term
- Stock Buy and Sell – Max one Transaction Allowed
- Divisor Game
- Lovely Cards
- Two Smallests in Every Subarray
- Split an array into two equal Sum subarrays
- Largest Pair Sum
- Two Swaps
- Meeting Rooms
- Count Pairs whose sum is less than target
- Union of Two Sorted Arrays with Distinct Elements
- Intersection of Two arrays with Duplicate Elements
- Search in a row-wise sorted matrix