Data Structures and Algorithms — Backtracking

Backtracking systematically searches for solutions by exploring possibilities and undoing steps when a dead-end is reached. Commonly used in puzzles, mazes, and constraint satisfaction problems.

// Example: N-Queens Problem Skeleton
function solveNQueens(n) {
  const board = Array.from({ length: n }, () => Array(n).fill('.'));
  function backtrack(row) {
    if (row === n) return true; // Found solution
    // Try placing queen in each column
    return false;
  }
  backtrack(0);
}
solveNQueens(4);