實驗7-2-4 計算天數 (15分)

#include <stdio.h>


int main()
{
    int result, year, month, day, flag = 0;
    scanf("%d/%d/%d", &year, &month, &day);
    if (year%400 == 0 || year%4 == 0 && year%100 != 0)
        flag = 1;
    if (month == 1){
        result = day;
    }else if( month == 2){
        result = 31 + day;
    }else if( month == 3){
            result = 31 + 28+ day;
            
        
    }else if( month == 4){
        result = 31 + 28 + 31 + day;
        
    }else if( month == 5){
        result = 31 + 28 + 31 + 30 + day;
    }else if( month == 6)
        result = 31 + 28 + 31 + 30 + 31 + day;
    else if( month == 7)
        result = 31 + 28 + 31 + 30 + 31 + 30 + day;
    else if( month == 8)
        result = 31 + 28 + 31 + 30 + 31 + 30 + 31 + day;
    else if( month == 9)
        result = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + day;
    else if( month == 10)
        result = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + day;
    else if( month == 11)
        result = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + day;
    else if( month == 12)
        result = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + day;
    if(flag && month != 1 && month != 2)
        result += 1;
    printf("%d", result);
    return 0;
}