题解 | #牛牛的字符菱形#

#include<bits/stdc++.h>
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;
    return 0;
}