题解

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

#include<iostream>
using namespace std;
int main(){
    char c;
    cin>>c;
    cout<<"  "<<c<<"\n";
    cout<<' '<<c<<c<<c<<"\n";
    cout<<c<<c<<c<<c<<c;
    return 0;
}