#include <stdio.h> 
int how(int A) 
  {
    int i,s=0,day;
     for (i=1;i<=A-1;i++)
       {   
          if (i%4==0 && i%100!=0 || i%400==0) 
              day=366;
          else
               day=365;
          s=s+day;
		  }
return s;
  }
int where(int B,int C)//年份  月份 
    {
      int tian;
      switch(C)
       {      
	    case 1:tian=31;break;
        case 2:
              if (B%4==0 && B%100!=0 || B%400==0)//闰年二月有29天 
                 tian=29;
              else
                 tian=28; break;
        case 3:tian=31;break;
        case 4:tian=30;break;
        case 5:tian=31;break;
        case 6:tian=30;break;
        case 7:tian=31;break;
        case 8:tian=31;break;
        case 9:tian=30;break;
        case 10:tian=31;break;
        case 11:tian=30;break;
        case 12:tian=31;break;
        }
return tian;
    }

void why(int E)
{
    switch(E)
       {
          case 1:                  printf("该日星期一\n");break;
          case 2:                  printf("该日星期二\n");break;
          case 3:                  printf("该日星期三\n");break;
          case 4:                  printf("该日星期四\n");break;
          case 5:                  printf("该日星期五\n");break;
          case 6:                  printf("该日星期六\n");break;
          case 7:                  printf("该日星期日\n");break;
        }
}




void when(int F,int G)
{
      if (F==1&&G==1||F==5&&G==1||F==10&&G==1)
          printf ("当天是公历节日");
      else
          printf ("当天不是公历节日");
}


int main(void)
{        

         int year,d,j,Z,di,did,m,n,D,x,y,z,h,k,l,jian,Z1;
         printf ("输入你所查寻日历的年份:");
         scanf ("%d",&year);
         Z=how(year);
    for (j=1;j<=12;j++)
    {
            d=Z%7+1;
            printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");
            printf ("         %d月份\n",j);
            printf ("SUN MON TUE WED THU FRI SAT\n");
        if (d<7)
        for (di=1;di<=d;di++)
           printf("    ");
        for (did=1;did<=where(year,j);did++)
           {
	          if(did<10)    printf("0%d  ",did);
              else          printf ("%d  ",did);
              
              if (did==7-d || (did-7+d)%7==0 || did==where(year,j))
                            printf ("\n");
            }
        Z=Z+where(year,j);
    }
         printf ("输入所查日历的年月：");
         scanf ("%d%d",&m,&n);
         Z=how(m);
   for (j=1;j<=n-1;j++)
    {
         D=where(m,j);
         Z=Z+D;
    }
             d=Z%7+1;
             printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");
             printf ("         %d月份\n",j);
             printf ("SUN MON TUE WED THU FRI SAT\n");
        if (d<7)
        for (di=1;di<=d;di++)
            printf("    ");
        for (did=1;did<=where(year,j);did++)
           {
             if(did<10)       printf("0%d  ",did);
             else             printf ("%d  ",did);
             if (did==7-d || (did-7+d)%7==0 || did==where(year,j))
                           printf ("\n");
           }
         printf ("输入年月日：");
         scanf ("%d%d%d",&x,&y,&z);
         Z=how(x);
   for (j=1;j<=y-1;j++)
   {
         D=where(x,j);
         Z=Z+D;
   }
        Z=Z+z;
         printf ("输入当前年月日：");
         scanf ("%d%d%d",&h,&k,&l);
         Z1=how(h);
   for (j=1;j<=k-1;j++)
   {
         D=where(k,j);
         Z1=Z1+D;
   }
         Z1=Z1+l;
         jian=Z1-Z;
         printf ("输入日期距今有%d天\n",jian);
         d=Z%7+1;
         why(d);
         when(y,z);
return 0;
}