DSA Pattern: Backtracking
Systematic exploration of all possible solutions
Pattern Overview
When to Use
- Combination/permutation generation
- Constraint satisfaction
- N-Queens / Sudoku
- Substring partitioning
Benefits
- Explores all solutions
- Pruning eliminates dead ends
- Built on recursion
- Undo mechanism
Example Problems
N-Queens
Place N queens on N×N board
Sudoku Solver
Fill in valid digits
Word Search
Find word in 2D grid
Practice Exercises
Step-by-step solutions, code implementations, and visualization diagrams will be available here soon.