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Write and explain recursive backtracking algorithm for n-queens?

Anonymous

∙ 11y ago

Updated: 11/2/2022

This is not a question, this is your homework.

For a start, read this: https://en.wikipedia.org/wiki/Eight_queens_puzzle

Wiki User

∙ 11y ago

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What is 8 queen problem explain?

public class NQueens { private static int[] b = new int[8]; private static int s = 0; static boolean unsafe(int y) { int x = b[y]; for (int i = 1; i <= y; i++) { int t = b[y - i]; if (t x) ? "|Q" : "|_"); } System.out.println("|"); } } public static void main(String[] args) { int y = 0; b[0] = -1; while (y >= 0) { do { b[y]++; } while ((b[y] < 8) && unsafe(y)); if (b[y] < 8) { if (y < 7) { b[++y] = -1; } else { putboard(); } } else { y--; } } } }

What is 8 queen problem explain?

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