HDU 2005 第几天？

不解释。

#include <stdio.h>int z[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};int main(){    int n,y,r;while(scanf("%d/%d/%d",&n,&y,&r)!=EOF){   int t=0;       if((n%4==0&&n%100!=0)||(n%400==0)) z[2]=29;       else z[2]=28;       for(int a=1;a<=y;a++)       t+=z[a-1];       t+=r;       printf("%d\n",t);}return 0;}