codeforces 467A（George and Accommodation） Java

无聊水题，秒秒秒！！！

import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.PrintWriter;import java.io.StreamTokenizer;/** * 题意：有 n 个房间，i-th 房间可以容纳 qi 个人，现有 pi 个人，问有几个房间可以容纳他们两个人？ * * @author TinyDolphin *         2017/6/25 10:00. */public class Main {    public static void main(String[] args) throws IOException {        StreamTokenizer in = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));        int roomNum;            // 房间数        int nowPeople;          // 现有人数        int accommodatePeople;  // 房间的容量        int roomCount;          // 满足需求的房间数        while (in.nextToken() != StreamTokenizer.TT_EOF) {            roomCount = 0;            roomNum = (int) in.nval;            while (roomNum-- != 0) {                in.nextToken();                nowPeople = (int) in.nval;                in.nextToken();                accommodatePeople = (int) in.nval;                if (accommodatePeople - nowPeople >= 2) {                    roomCount++;                }            }            out.println(roomCount);        }        out.flush();    }}