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dark_coder88
STREAK
00/1431
days
Longest streak/Global longest streak
Language Used
Java, C++, C
Coding Score
407
Problem Solved
154
Contest Rating
__
132 points
Contributor
132 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
6 submissions in current year
SCHOOL (0)
BASIC (18)
EASY (65)
MEDIUM (62)
HARD (9)
- Triangle and Square
- M and N
- Reverse a linked list
- Frequency in a Linked List
- Node at a given index in linked list
- Remove duplicates from an unsorted linked list
- Split a Linked List into two halves
- Delete in a Doubly Linked List
- Inorder Traversal
- Reverse a Doubly Linked List
- 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
- Transform to Sum Tree
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Level Order in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- Insert a node in a BST
- BFS of graph
- Lowest Common Ancestor in a BST
- Level Order Line by Line
- BST Keys in a Range
- Minimum Depth of a Binary Tree
- Binary Tree to BST
- Delete in a Singly Linked List
- Kth largest element in BST
- Max Level Sum in Binary Tree
- Special Stack
- Level order traversal
- Max and min element in Binary Tree
- Reverse Using Stack
- Delete Alternate Nodes
- Find length of Loop
- Find n/k th node in Linked list
- Queue Reversal
- Reverse first K of a Queue
- Sum of Leaf Nodes
- Sum of Right Leaf Nodes
- Sum of Left Leaf Nodes
- Nodes at Odd Levels
- Sum of Leaf Nodes at Min Level
- Equilibrium Point
- Reverse Words
- Parenthesis Checker
- Minimum Cost of ropes
- N meetings in one room
- Count number of hops
- Missing in Array
- String Manipulation
- Count the triplets
- Longest Common Prefix of Strings
- Shop in Candy Store
- The Nth Fibonnaci
- Nth Fibonacci Number
- Maximize Toys
- Largest number possible
- Sum of k smallest elements in BST
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Detect Loop in linked list
- Insert in Sorted Circular Linked List
- Count BST nodes that lie in a given range
- Bottom View of Binary Tree
- Diameter of a Binary Tree
- Sum Tree
- Connect Nodes of Levels
- Delete a node from BST
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Maximum difference between node and its ancestor
- Two Stacks in an Array
- Topological sort
- Find the number of islands
- Linked List to Binary Tree
- Generate IP Addresses
- Remove loop in Linked List
- Dijkstra Algorithm
- Minimum Spanning Tree
- Minimum Swaps to Sort
- Palindrome Linked List
- Strongly Connected
- Rat in a Maze Problem - I
- Bipartite Graph
- Sort a stack
- Top View of Binary Tree
- k-th Smallest in BST
- Ancestors in Binary Tree
- Root to Leaf Paths
- Leftmost and rightmost nodes of binary tree
- Modify Linked List-1
- Construct Tree from Inorder & Preorder
- ZigZag Tree Traversal
- Rearrange Array Alternately
- Kadane's Algorithm
- Count Inversions
- Indexes of Subarray Sum
- Activity Selection
- Combination Sum
- Longest Increasing Subsequence
- Longest Common Subsequence
- Equal Sum Partition
- Preorder to BST
- Find whether path exist
- Word Boggle
- Sort 0s, 1s and 2s
- Design a tiny URL or URL shortener
- 2D Candy Dam
- Minimize the Heights II
- Friends Pairing Problem
- Combination Sum - Part 2
- Restricted Pacman
- Perfect Sum Problem
- Fibonacci Sum
- Subset with sum divisible by k
- Maximum path sum in matrix
- Choose and Swap
- Floyd Warshall
- Shortest Source to Destination Path
- Print Linked List
- Count Linked List Nodes
- Size of Binary Tree
- Count Leaves in Binary Tree
- Postorder Traversal
- Implement stack using array
- Doubly linked list Insertion at given position
- Preorder Traversal
- Linked List Insertion At End
- Minimum element in BST
- Circular Linked List Traversal
- Modular Node
- Sum of Binary Tree
- Count Non-Leaf Nodes in Tree
- Start Coding
- Sorted Array Search
- Immediate Smaller Element
- Check if the number is Fibonacci
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