#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,k=0;
    string c[26]={"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"};
    cin>>n;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			cout<<c[k];
			k++;
		}
		k-=n-1;
		cout<<endl;
	} 
	return 0;
}

这是程序，只得了24分，帮帮我这个蒻暨吧，回帖必关