python/TangDou/XiTi/1007.cpp

#include <bits/stdc++.h>

using namespace std;

int main() {
    char a;
    cin >> a;
    for (int i = 1; i <= 3; i++) {
        //输出空格
        for (int j = 0; j < 3 - i; j++) {
            cout << " ";
        }
        //输出星星
        for (int j = 1; j <= 2 * i - 1; j++) {
            cout << a;
        }
        cout << endl;
    }
    return 0;
}