[C++知识库]C语言 闰年

#include<stdio.h>

bool Leapyear(int n)
{
    if((n%4==0&&n%100!=0)||n%400==0)
        return true;
    else
        return false;
}

int Days(int a,int b,int c)
{
    int two=28;
    if(Leapyear(a))
        two=29;
    int sum =0;
    switch(b){
  case 1:
    sum=c;break;
  case 2:
    sum=31+c;break;
  case 3:
    sum = 31+two+c;break;
  case 4:
    sum = 31+two+31+c;break;
  case 5:
    sum = 31+two+31+30+c;break;
  case 6:
    sum = 31+two+31+30+31+c;break;
  case 7:
    sum = 31+two+31+30+31+30+c;break;
  case 8:
    sum = 31+two+31+30+31+30+31+c;break;
  case 9:
    sum = 31+two+31+30+31+30+31+31+c;break;
  case 10:
    sum = 31+two+31+30+31+30+31+31+30+c;break;
  case 11:
    sum = 31+two+31+30+31+30+31+31+30+31+c;break;
  case 12:
    sum = 31+two+31+30+31+30+31+31+30+31+30+c;break;
    }
    return sum;
}


int main()
{
    int y,m,d;
    scanf("%d-%d-%d",&a,&b,&c);
    printf("%d\n",Days(a,b,c));
    return 0;
}