PKU 2017 "Speed Limit"

問題：http://acm.pku.edu.cn/JudgeOnline/problem?id=2017
順位：http://acm.pku.edu.cn/JudgeOnline/problemstatus?problem_id=2017&orderby=clen&language=2
提出コード(190B)

import java.util.*;class Main{static{Scanner s=new Scanner(System.in);for(int n,c,t;(n=s.nextInt())>0;System.out.println(c+" miles"))for(c=t=0;n-->0;)c+=s.nextInt()*(-t+(t=s.nextInt()));}}

整形コード

import java.util.*;

class Main {
	static {
		Scanner s = new Scanner(System.in);
		for (int n, c, t; (n = s.nextInt()) > 0; System.out.println(c
				+ " miles")) {
			for (c = t = 0; n-- > 0;)
				c += s.nextInt() * (-t + (t = s.nextInt()));
		}
	}
}