题解

      题解

#include<iostream>
using namespace std;
int main(){
char a;
cin >> a;
for(int i = 1; i<= 3;i++){
for(int j = 2;j >= i;j--)
cout << " ";
for(int j = 1;j <= i * 2 - 1;j++)
cout << a;
cout << endl;
}
return 0;
}