简单题 按照要求输出即可
#include<cstdio>
int main()
{
int n,col;//分别为列数和行数
char c;
scanf("%d %c", &n, &c);
if (n % 2 == 0) col = n / 2;
else col = (n + 1) / 2;
for (int i = 0; i < n; i++)
{
printf("%c", c);
}
printf("\n");
for (int i = 1; i < col - 1; i++)
{
for (int j = 0; j < n; j++)
{
if (j == 0 || j == n - 1) printf("%c", c);
else printf(" ");
}
printf("\n");
}
for (int i = 0; i < n; i++)
{
printf("%c", c);
}
return 0;
}