参考代码
#include using namespace std; int main() { int t, n, m; cin >> t; while (t--) { cin >> n >> m; int arr[800][40] = {0}; for (int i = 0; i < (n-1)*m+1; i++) arr[i][i%(n-1)] = 1, arr[i][n-1-i%(n-1)] = 1; for (int i = 0; i < (n-1)*m+1; i++) { for (int j = 0; j < n; j++) { if (arr[i][j] ) cout << 'X'; else cout << ' '; } cout << endl; } cout << endl; } return 0; }
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