HDU-2005

计算所给日期为该年的第几天
 1 #include<stdio.h>
 2 #include<stdlib.h>
 3 #include<math.h>
 4 #include<string.h>
 5 int main()
 6 {
 7     int y,m,d;
 8     int mm;
 9     char c;
10     int date;
11     while (scanf("%d",&y)!=EOF)
12     {
13         date=0;
14         scanf("%c%d%c%d",&c,&m,&c,&d);
15         mm=m;
16         while (m--)
17         {
18             switch(m)
19             {
20                 case 12:date+=31; break;
21                 case 11:date+=30; break;
22                 case 10:date+=31; break;
23                 case 9: date+=30; break;
24                 case 8: date+=31; break;
25                 case 7: date+=31; break;
26                 case 6: date+=30; break;
27                 case 5: date+=31; break;
28                 case 4: date+=30; break;
29                 case 3: date+=31; break;
30                 case 2: date+=28; break;
31                 case 1: date+=31; break;
32             }
33         }
34         if (((0==y%4&&y%100!=0)||(0==y%400))&&(mm>2)) date++;
35         date+=d;
36         printf("%d
",date);
37     }
38     return 0;
39 }