Aizu Online Judge 0125 Day Count

■0125 Day Count

import java.util.*;
import java.lang.*;
import java.math.*;
import java.io.*;

public class Main{

 Scanner sc=new Scanner(System.in);;

 int INF=1<<28;
 double EPS=1e-9;

 void run(){
  for(;;){
   int y1=sc.nextInt();
   int m1=sc.nextInt();
   int d1=sc.nextInt();
   int y2=sc.nextInt();
   int m2=sc.nextInt();
   int d2=sc.nextInt();
   if(y1<0||m1<0||d1<0||y2<0||m2<0||d2<0){
    break;
   }
   int a=day(y1, m1, d1);
   int b=day(y2, m2, d2);
   println((b-a)+"");
  }
 }

 int day(int y, int m, int d){
  int res=0;
  int[] days={31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
  for(int i=0; i<m-1; i++){
   res+=days[i];
  }
  res+=y*365+d-1;
  if((m==2&&d<=28)||m==1){
   y--;
  }
  if(y>=0){
   res+=y/4+1;
   res-=y/100+1;
   res+=y/400+1;
  }
  return res;
 }

 void debug(Object... os){
  System.err.println(Arrays.deepToString(os));
 }

 void print(String s){
  System.out.print(s);
 }

 void println(String s){
  System.out.println(s);
 }

 public static void main(String[] args){
  new Main().run();
 }
}