View Code of Problem 81

        #include<stdio.h>
        struct Time{
          int year;
          int month;
          int day;
        }time;
        int main()
        {
         int i,k=0;
          int a[12]={31,28,31,30,31,30,31,31,30,31,30,31};
          scanf("%d%d%d",&time.year,&time.month,&time.day);
          if((time.year%4==0&&time.year%100!=0)||time.year%400==0)
          {
           k=1;
          }
          for(i=0;i<time.month-1;i++)
          {
          if(k==1&&i==1)
          {
          time.day+=a[i]+1;
          }
          else time.day+=a[i];
          
          }
          printf("%d",time.day);
          return 0;
        }