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| #include <cstdio>
int tot = 0, row, line[10], n;
void Search(int row);
int main() { freopen("output.txt", "w", stdout); int a[11]; while(scanf("%d", &n) != EOF && n){ Search(0); } return 0; }
void Search(int row) { int i, j; if(row == n) { for(int i = 0; i < n; i++){ for(int j = 0; j < n; j++){ if(j == line[i]){ printf("1 "); continue; } printf("0 "); } printf("\n"); } printf("\n\n"); } else{ for(i = 0; i < n; i++){ bool istrue = true; line[row] = i; for(j = 0; j < row; j++){ if(line[row] == line[j] || line[row] - row == line[j] - j || line[row] + row == line[j] + j){ istrue = false; break; } } if(istrue) Search(row + 1); } } }
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