What is a backtracking algorithm?
A backtracking algorithm is a problem-solving technique that incrementally builds candidates for solutions and abandons a candidate as soon as it is determined that it cannot lead to a valid solution.
Can you give me an example of where backtracking is used?
Sure! A common example is solving puzzles like Sudoku, where you try different numbers in empty cells and backtrack if a number leads to an invalid board.
How does backtracking differ from brute force?
Backtracking is more efficient than brute force because it eliminates large portions of the search space by abandoning paths that won't lead to a solution, while brute force tries every possible combination.
What are some common problems that can be solved using backtracking?
Common problems include the N-Queens problem, the Hamiltonian path problem, and generating permutations or combinations.
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