数组结构体时间设计

#include<stdio.h>

typedef struct today{

int year;

int month;

int day;

}today;

int main(){

today date;

int month[12]={31,28,31,30,31,30,31,31,30,31,30,31};

int i,theday=0;

scanf("%d %d %d",&date.year,&date.month,&date.day);

if(date.year%4==0&&date.year%100!=0||date.year%400==0)

month[1]=29;

for(i=0;i<date.month-1;i++)

{

if(date.month<1)

break;

else{

theday+=month[i];

}

}

printf("%d",theday+date.day);

}