S
scoder13
STREAK
01/1474
days
Longest streak/Global longest streak
Institution
Indian Institute of Technology, Roorkee
Language Used
C++
Coding Score
867
Problem Solved
267
Contest Rating
__
81 points
Contributor
81 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
45 submissions in current year
SCHOOL (0)
BASIC (14)
EASY (66)
MEDIUM (161)
HARD (26)
- Rearrange characters
- Add 1 to a Linked List Number
- Detect Loop in linked list
- Count BST nodes that lie in a given range
- Quick Sort
- Bottom View of Binary Tree
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Sum Tree
- Flattening a Linked List
- Diagonal Tree Traversal
- Tree Boundary Traversal
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Two Stacks in an Array
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological sort
- Find the number of islands
- Wildcard Pattern Matching
- Dijkstra Algorithm
- Minimum Spanning Tree
- Largest BST
- Interleaved Strings
- Minimum Swaps to Sort
- Palindrome Linked List
- Strongly Connected
- Rat in a Maze Problem - I
- Bipartite Graph
- Merge k Sorted Arrays
- Bridge edge in a graph
- Sort a stack
- Top View of Binary Tree
- Level order traversal
- Merge Sort for Linked List
- Predecessor and Successor
- Children Sum in a Binary Tree
- Sum of nodes on the longest path
- ZigZag Tree Traversal
- Mother Vertex
- Ceil in BST
- Stock buy and sell
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Two Repeated Elements
- Unique BST's
- Triplet Sum in Array
- Possible paths between 2 vertices
- Level of Nodes
- Spirally traversing a matrix
- Distance of nearest cell having 1
- Unit Area of largest region of 1's
- Subarray with 0 sum
- Longest Consecutive Subsequence
- Postfix Evaluation
- Next Greater Element
- K Sized Subarray Maximum
- Activity Selection
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- M-Coloring Problem
- Minimum Jumps
- Detect Cycle using DSU
- Stickler Thief
- Ways to Reach the n'th Stair
- Egg Dropping Puzzle
- Optimal Strategy For A Game
- Minimum number of jumps
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Equal Sum Partition
- Allocate Minimum Pages
- Preorder to BST
- X Total Shapes
- Zero Sum Subarrays
- Find whether path exist
- Kth Smallest
- Shortest Common Supersequence
- Nth Catalan Number
- Rotten Oranges
- Count subsequences of type a^i, b^j, c^k
- Maximize The Cut Segments
- Word Break
- Prerequisite Tasks
- 4 Sum - All Quadruples
- Sort 0s, 1s and 2s
- Painting the Fence
- Maximum Product Subarray
- Row with max 1s
- Column name from a given column number
- Nuts and Bolts Problem
- Longest Subarray with Sum K
- Count the Reversals
- Factorials of large numbers
- k largest elements
- Longest Common Substring
- Longest Palindrome in a String
- K-th element of two Arrays
- Triplets with Smaller Sum
- Rod Cutting
- Minimum swaps and K together
- Maximum difference of zeros and ones in binary string
- Minimize the Heights II
- First and Last Occurrences
- Valid Substring
- Minimum Swaps for Bracket Balancing
- Permutations of a String
- Combination Sum - Part 2
- Unique Number II
- Skip the work
- Minimum number of deletions and insertions
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Sieve of Eratosthenes
- Gold Mine Problem
- Coin Change (Minimum Coins)
- Dice throw
- Power Set
- nCr
- Maximum path sum in matrix
- Partition Equal Subset Sum
- Get Minimum Squares
- Count digit groupings of a number
- Subset Sums
- Choose and Swap
- Find nth root of m
- Next Permutation
- Longest Repeating Subsequence
- Total Decoding Messages
- Stream First Non-repeating
- Water Overflow
- Snake and Ladder Problem
- Product of Primes
- Transitive closure of a Graph
- Replace O's with X's
- Check Mirror in N-ary tree
- Find the string in grid
- Floyd Warshall
- Flood fill Algorithm
- Shortest Source to Destination Path
- Hamiltonian Path
- Preorder traversal (Iterative)
- Subset Sum Problem
- Longest Palindromic Substring
- Form a palindrome
- Player with max score
- Number of Provinces
- Minimum times A has to be repeated such that B is a substring of it
- Next Greater Element
- Connect Nodes at Same Level
- Neeman's Shoes
- Course Schedule
- Maximum Value
- Aggressive Cows
- Maximum Sum Combination
- Floor in BST
- Count Subarrays with given XOR
- Reverse a linked list
- Remove duplicates from an unsorted linked list
- Bubble Sort
- Insertion Sort
- Right View of Binary Tree
- Mirror 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
- Transform to Sum Tree
- Intersection Sorted Linked Lists
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Stack using two queues
- Reverse Level Order Traversal
- DFS of Graph
- Implement stack using array
- BFS of graph
- Nodes without a Sibling
- Leaves at Same Level or Not
- Kth largest element in BST
- Array Duplicates
- Insert in a Sorted List
- More than n/k Occurrences
- Reverse Using Stack
- Find length of Loop
- Power of 2
- Equilibrium Point
- Print adjacency list
- Reverse Words
- Non Repeating Character
- Parenthesis Checker
- N meetings in one room
- Union-Find
- 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
- Search an element in sorted and rotated array
- Missing And Repeating
- Common in 3 Sorted Arrays
- Move All Zeroes to End
- Chocolate Distribution Problem
- Find Pair Given Difference
- Smallest subarray with sum greater than x
- Second most repeated string in a sequence
- Min Number of Flips
- Two sum -Pairs with 0 Sum
- Palindrome String
- Shop in Candy Store
- Minimum Operations
- Number of 1 Bits
- Nth Fibonacci Number
- Copy Set Bits in Range
- Shortest path from 1 to n
- Minimum number of Coins
- BBT counter
- Overlapping rectangles
- Unique paths in a grid
- Absolute difference divisible by K
- Linked List Group Reverse
- Binary Tree to DLL
- Min distance between two given nodes of a Binary Tree
- LRU Cache
- Box Stacking
- Alien Dictionary
- Trapping Rain Water
- Histogram Max Rectangular Area
- Max of min for every window size
- Merge Without Extra Space
- The Painter's Partition Problem-II
- Longest Prefix Suffix
- Edit Distance
- Minimum sum partition
- Palindromic Partitioning
- Stock Buy and Sell – Max K Transactions Allowed
- Matrix Chain Multiplication
- Boolean Parenthesization
- Longest Zig-Zag Sub Sequence
- Word Break - 2
- N-Queen Problem
- Word Wrap
- Array Partition
- Shortest path using atmost one Curved edge
- Find number of closed islands
- Shortest Path by Removing K walls
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