题解 | #计算日期到天数转换#

import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            int year = sc.nextInt();
            int month = sc.nextInt();
            int day = sc.nextInt();
            System.out.println(getday(year,month,day));
        }
    }
    public static int getday(int year,int month,int day){
        int sum = day;
        int[] mon = {31,28,31,30,31,30,31,31,30,31,30,31};
        for(int i=0;i<month-1;i++){
            sum = sum + mon[i];
        if((month >2 && year%4==0 && year%100!=0) || (month >2 && year%400==0)){
            sum = sum + 1;
        }
        return sum;
    }
}