提交时间:2023-10-04 12:05:25
运行 ID: 27388
#include<iostream> #include<cstdio> #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; return 0; }