题解 | #牛牛的字符菱形#

#include <iostream>
using namespace std;

int main() {
    char a;

    cin >> a;

    cout << "  " << a << "  " << endl;
    cout << " " << a << a << a <<" " << endl;
    cout << a << a << a << a << a << endl;
    cout << " " << a << a << a << " " << endl;
    cout << "  " << a << "  " << endl;
}