- DSA Problems
Kth Smallest Element in a BST - Efficient Tree Traversal Solution
Learn to find the kth smallest element in a Binary Search Tree using iterative inorder traversal with O(h) space complexity.
- DSA Problems
Validate Binary Search Tree Algorithm Solution
Complete Java implementation to validate if a binary tree is a valid BST with optimal time and space complexity considerations.
- DSA Patterns
Topological Sort Algorithm Implementation and Applications
Complete Java solution for topological sorting with DFS and BFS approaches, including cycle detection and practical use cases.
- DSA Problems
Subtree of Another Tree Java Solution
Complete Java implementation for checking if one binary tree is a subtree of another, including multiple approaches and time complexity analysis.
- DSA Problems
Same Tree and Symmetric Tree Problems in Java
Comprehensive Java solution for same tree and symmetric tree problems including recursive and iterative approaches with time and space complexity analysis.
- DSA Patterns
Number of Islands Problem Solution in Java
Complete Java implementation for counting islands in a 2D grid using DFS and BFS approaches with time and space complexity analysis.
- DSA Problems
Path Sum II Java Solution with DFS and Backtracking
Complete Java implementation for Path Sum II problem with detailed explanation of DFS approach and backtracking techniques for finding all root-to-leaf paths with target sum.
- DSA Problems
Diameter of Binary Tree Solution in Java
Complete Java implementation for finding the diameter of a binary tree with optimal time and space complexity analysis.
- DSA Problems
Maximum Depth of Binary Tree Solution
Complete Java implementation for finding maximum depth of binary tree with BFS and DFS approaches, including time/space complexity analysis.
- DSA Patterns
Validate Binary Search Tree with Bounds Propagation
Complete Java solution for validating BST using bounds propagation technique with detailed time/space analysis and edge case handling.
- DSA Patterns
Designing an Autocomplete System with Trie Data Structure
Implementation of autocomplete functionality using trie data structure with efficient prefix matching and suggestion ranking.
- DSA Problems
Valid Parentheses Algorithm Solution
Complete Java implementation for validating balanced parentheses using stack data structure with O(n) time and space complexity.
#LeetCode
Browse articles tagged with #LeetCode