- DSA Patterns
Combination Sum Algorithm Solutions and Implementation Guide
Comprehensive Java solutions for combination sum problems including backtracking and dynamic programming approaches with time complexity analysis.
- DSA Patterns
Subsets and Permutations Problem Solving Patterns in Java
Comprehensive guide to subset and permutation generation algorithms with iterative and recursive approaches, including time complexity analysis and practical implementation strategies.
- DSA Problems
Max Area of Island Java Solution
Complete Java implementation for finding maximum area of island in 2D grid using DFS and BFS approaches with time and space complexity analysis.
- DSA Problems
Rotting Oranges Java Solution with BFS
Complete Java implementation of the rotting oranges problem using breadth-first search to find minimum time for all oranges to rot.
- DSA Patterns
Search in Rotated Sorted Array Java Solution
Complete Java implementation of rotated sorted array search with binary search optimization and edge case handling for FAANG interviews.
- DSA Problems
Number of Islands Problem Solution
Complete Java implementation for counting connected land cells in a 2D grid using DFS and BFS approaches.
- DSA Patterns
Binary Search Algorithm Implementation and Applications
Complete Java solution for binary search with multiple use cases, time complexity analysis, and practical implementation patterns for FAANG interviews.
- DSA Problems
Add and Search Word Data Structure Implementation
Complete Java solution for designing a word dictionary with add and search functionality using Trie data structure.
- DSA Problems
Word Search II Java Solution with Trie and DFS
Complete Java implementation for Word Search II problem using Trie data structure and depth-first search with backtracking.
- DSA Patterns
Sorting and Merging Intervals in Java
Complete Java solution for interval sorting problems including merge intervals, interval scheduling, and overlap detection with optimal time complexity.
- DSA Problems
Implement Trie (Prefix Tree) Data Structure in Java
Complete Java solution for implementing a Trie (Prefix Tree) data structure with insert, search, and startsWith operations optimized for string prefix matching.
- DSA Problems
Delete Node in a BST
Learn how to delete a node from a Binary Search Tree while maintaining BST properties and optimal time complexity.
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