PAT B1036 跟奥巴马一起编程

#include <stdio.h>
#include <iostream>
using namespace std;

int main()
{
    int col, row;
    char c;
    scanf("%d %c", &col, &c);
    if (col % 2 == 1){
        row = col / 2 + 1;
    } else {
        row = col / 2;
    }

    for (int i = 0; i < col; i++){
        putchar(c);
    }
    putchar('\n');

    for (int i = 0; i < row - 2; i++){
        putchar(c);
        for (int k = 0; k < col - 2; k++){
            putchar(' ');
        }
        putchar(c);
        putchar('\n');
    }
    for (int i =0; i < col;i++){
        putchar(c);
    }
    return 0;
}