N queens problem. Minimum steps by knight.

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The N Queens problem is to place N chess queens on an NxN board so that no two queens threaten each other. Minimum steps by knight is a variation of this problem.

The N Queens problem is a classic problem in computer science and can be solved using backtracking.
The minimum steps by knight variation involves placing N knights on an NxN board so that no two knights threaten each other.
This problem can also be solved using backtracking and can be optimized using heuristics such as Warnsdorff's rule.
The time complexity of the solution is O(N^N) and can be improved using pruning techniques.
This problem has applications in scheduling, graph coloring, and cryptography.

N queens problem. Minimum steps by knight.

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