哪个大佬救救我！ 肯定关注

#include<iostream>
#include<cmath>
using namespace std;
int main(){
	int n;
	cin >> n;
	char c = 'A';
	for(int i = 1;i <= n;i++){
		for(int j = 1;j <= n;j++){
			cout << c;
			c++;
		}
		cout << endl;
		c = 65+i;
	}
	return 0;
}