[백준] 반복문 - 15552_빠른 A + B Java[자바]

[Bronze IV]

Scanner와 System.out.print 보다 성능이 좋은 BufferedReader와 BufferedWriter를 사용하면 되는 문제이다.

import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        StringTokenizer st;
        
        int num = Integer.valueOf(br.readLine());
        for(int i = 0; i < num; i++) {
            st = new StringTokenizer(br.readLine(), " ");
            int A = Integer.valueOf(st.nextToken());
            int B = Integer.valueOf(st.nextToken());
            bw.write(String.valueOf(A + B) + "\n");
        }
        
        bw.flush();
        bw.close();
    }
}