1、根据日期计算对应的星期
利用基姆拉尔森计算公式,详情见 百度百科
2、c++实现如下
#include <iostream>
using namespace std;
int main()
{
char *week[7] = {"星期日","星期一","星期二","星期三","星期四","星期五","星期六"};
int y, m, d,t;
while (cin >> y >> m >> d)
{
if (m <= 2)
{
m += 12;
y--;
}
t = (d + 2 * m + 3 * (m + 1) / 5 + y + y / 4 - y / 100 + y / 400 + 1) % 7;
cout << week[t] << endl;
}
//system("pause");
return 0;
}
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