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int dayofweek(int y, int m, int d) /* 0 = Sunday */
{
static int t[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4};
y -= m < 3;
return (y + y/4 - y/100 + y/400 + t[m-1] + d) % 7;
}
计算星期几的算法;
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原文地址:http://www.cnblogs.com/chencesc/p/4739864.html