编辑代码

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

#define N 8

bool isSafe(int board[N][N], int row, int col) {
    int i, j;
    for (i = 0; i < col; i++)
        if (board[row][i]) return false;
    for (i = row, j = col; i >= 0 && j >= 0; i--, j--)
        if (board[i][j]) return false;
    for (i = row, j = col; j >= 0 && i < N; i++, j--)
        if (board[i][j]) return false;
    return true;
}

bool solveNQUtil(int board[N][N], int col) {
    if (col >= N) return true;
    for (int i = 0; i < N; i++) {
        if (isSafe(board, i, col)) {
            board[i][col] = 1;
            if (solveNQUtil(board, col + 1)) return true;
            board[i][col] = 0; // Backtrack
        }
    }
    return false;
}

void printSolution(int board[N][N]) {
    for (int i = 0; i < N; i++) {
        for (int j = 0; j < N; j++)
            printf(" %d ", board[i][j]);
        printf("\n");
    }
}

void solveNQ() {
    int board[N][N] = {0};
    if (solveNQUtil(board, 0) == false) {
        printf("Solution does not exist");
        return;
    }
    printSolution(board);
}

int main() {
    solveNQ();
    return 0;
}