这道题不难,但是自己用switch,很烦
参考码中有个不错的办法
#include <math.h>
#include <stdio.h>
#define lev(n) ((n % 4 == 0 && n % 100 != 0) ||( n % 400 == 0))//((n % 4 == 0 && n % 100 != 0) ||( n % 400 == 0))的值是1或0.
int main(void)
{
int y, m, d, i, s;
int month[2][13] = {
{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
{0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
};
while (scanf("%d/%d/%d", &y, &m, &d) != EOF)
{
for (s = 0, i = 1 ; i < m ; i++)
s += month[lev(y)][i];
s += d;
printf("%d\n", s);
}
return 0;
}
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