#include <iostream.h>
#include<iomanip.h>
const int r=1;
const int w=0;
int Leap(int year) //函数isleap()判断某年是不是闰年
{
int Leap=w;
if(year%4==0&&year%100!=0||year%400==0)
Leap=r;
return Leap;
}
int f(int year) //函数f()判断每年元旦是星期几
{
int n=year-1980;
n=n+n/4+1;
n=(n+2)%7;
if(n=0)
return 7;
else return n;
}
void main()
{
int i, mouyhday, year,weekday, mouth;
cout<<"输入要查询的年份 ";
cin>>year;
weekday=f(year);
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