[Java] 백준 15552 빠른 A+B

https://www.acmicpc.net/problem/15552

15552번: 빠른 A+B

# Scanner 사용 - 시간초과

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int t = sc.nextInt();

        for (int i=0; i<t; i++) {
            System.out.println(sc.nextInt() + sc.nextInt());
        }
    }
}

 

# BufferedReader, BufferedWriter 사용

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

public class Main {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
            StringTokenizer st;
            int t = Integer.parseInt(br.readLine());

            for (int i=0; i<t; i++) {
                st = new StringTokenizer(br.readLine());
                bw.write(Integer.parseInt(st.nextToken())+Integer.parseInt(st.nextToken())+"\n");
            }
            br.close();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
            System.out.println(e.getMessage());
        }
    }
}