题解 | 牛牛的字符矩形
牛牛的字符矩形
https://www.nowcoder.com/practice/2dbf0151eb71402e968a2a8e59092568
#include <iostream>
using namespace std;
int main() {
char c;
cin >> c;
cout << c << c << c << endl;
cout << c << c << c << endl;
cout << c << c << c << endl;
return 0;
}
// 64 位输出请用 printf("%lld")
