d485: 我愛偶數

題目:http://zerojudge.tw/ShowProblem?problemid=d485
程式碼:

import java.util.Scanner;
public class d485 {

 public static void main(String[] args) {
  // TODO Auto-generated method stub
  Scanner sc= new Scanner(System.in);
  while(sc.hasNext()){
   int s = sc.nextInt();//輸入數字
   int e = sc.nextInt();
   s += (s%2);
      e -= (e%2);
   System.out.println((e-s)/2+1);
  }
 }

}