What is backtracking in programming?
Backtracking is an algorithmic technique for solving problems incrementally, by trying partial solutions and then abandoning them if they fail to satisfy the conditions of the problem.
Can you give me an example of a problem that uses backtracking?
Sure! A classic example is the N-Queens problem, where you need to place N queens on an N×N chessboard so that no two queens threaten each other.
How does the backtracking algorithm work for the N-Queens problem?
The algorithm places a queen in a row and recursively attempts to place queens in subsequent rows. If a placement leads to a conflict, it backtracks and tries the next position.
Are there any other applications of backtracking?
Yes, backtracking is also used in solving puzzles like Sudoku, generating permutations, and in pathfinding problems.
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