pat-basic-1036-c语言

#include<stdio.h>int main(){int i,j,m;char ch;double n,k;scanf("%lf %c",&n,&ch);k=n/2;j=n/2;if(k-j>=0.5)j++;m=j;for(;j>=1;j--){if(j==m||j==1){for(i=n;i>=1;i--)putchar(ch);putchar('\n');}else{for(i=n;i>=1;i--){if(i==n||i==1)putchar(ch);elseputchar(' ');}putchar('\n');}}return 0;}