- 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 Patterns
Breadth-First Search Graph and Grid Traversal Patterns
Comprehensive guide to BFS algorithms for graph traversal, grid exploration, and shortest path problems with Java implementations.
- DSA Problems
Invert Binary Tree Algorithm Solution
Complete Java implementation for inverting a binary tree with recursive and iterative approaches, including time complexity analysis and edge case handling.
- DSA Patterns
Subtree of Another Tree Algorithm Solution
Complete Java implementation for checking if one binary tree is a subtree of another, including multiple approaches and time complexity analysis.
- DSA Patterns
Invert Binary Tree Algorithm Solution
Complete Java implementation of binary tree inversion with recursive and iterative approaches, including time complexity analysis and practical considerations for FAANG interviews.
- DSA Patterns
Tree Path Sum Problems in Java: DFS and BFS Solutions
Comprehensive guide to solving tree path sum problems using DFS and BFS traversal techniques with optimal time and space complexity analysis.
- DSA Patterns
Lowest Common Ancestor in Binary Trees and Graphs
Comprehensive Java solution for finding the lowest common ancestor in binary trees, including iterative and recursive approaches with time complexity analysis.
- DSA Patterns
Breadth-First Search Queue Patterns in Java
Comprehensive guide to BFS queue patterns including level-order traversal, shortest path finding, and multi-source exploration with practical Java implementations.
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