题解 | 牛牛的字符矩形

#include <stdio.h>


int main()
{
	char ch = 0; 
	scanf("%c", &ch); 
	for (int i = 0; i <= 2; i++)
	{
		for (int j = 0; j <= 2; j++)
		{
			printf("%c", ch);
		}
		printf("\n");
	}
	return 0; 
}