Backtracking is a general algorithm for finding solutions to some computational problems, notably constraint satisfaction problems, that incrementally builds candidates to the solutions, and abandons a candidate ("backtracks") as soon as it determines that the candidate cannot possibly be completed to a valid solution.

What is backtracking and why it is required?

Backtracking algorithm determines the solution by systematically searching the solution space for the given problem. Backtracking is a depth-first search with any bounding function. All solution using backtracking is needed to satisfy a complex set of constraints. The constraints may be explicit or implicit.

What is backtracking and its application?

Backtracking is a technique based on algorithm to solve problem. It uses recursive calling to find the solution by building a solution step by step increasing values with time. ... Backtracking algorithm is applied to some specific types of problems, Decision problem used to find a feasible solution of the problem.