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#include?

main()

{

int?year,month,day=0,a,b,week,c,i,sum=0,days,d;

printf("please?input?year,month,days\n");

scanf("%d,%d,%d",&year,&month,&days);

for(i=1;i

{

if?(year%4==0)

{

if(year%100==0)

{

if?(year%400==0)?a=1;

else?a=0;

}

else

a=1;

}

else

a=0;

{

if(a=1)

b=366;

else

b=365;

}

sum=b+sum;

}

printf("sum?is?%d\n",sum);

if?(year%4==0)

{

if(year%100==0)

{

if?(year%400==0)?a=1;

else?a=0;

}

else

a=1;

}

else

a=0;

for(i=1;i

{

switch(i)

{

case?1:

case?3:

case?5:

case?7:

case?8:

case?10:

case?12:d=31;break;

case?4:

case?6:

case?9:

case?11:d=30;break;

case?2:?if?(a)?d=29;

else?d=28;

break;

default:d=0;

}

day=d+day;

}

printf("day?is?%d\n",day);

printf("days?is?%d\n",days);

sum=sum+day+days;

sum=sum%7;

printf("%d的%d月是%d日星期%d\n",year,month,days,sum);

}