[백준] 10808번 JAVA

10824번

 

역대급으로 쉬운거 같은데 런타임 에러가 나서 뭔가 봤더니

NumberFormat Exception

자료형을 int -> long으로 바꿔 선언하니 성공.

 

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Main {
	public static void main(String args[]) throws IOException {
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        
        String[] inputArr = reader.readLine().split(" ");
        long firstVar = Long.parseLong(inputArr[0].concat(inputArr[1]));
        long secondVar = Long.parseLong(inputArr[2].concat(inputArr[3]));
        long result = Long.sum(firstVar, secondVar);
        System.out.println(result);
        	
        bw.write("\n");

        reader.close();
        bw.flush();
	}
}