[백준, BOJ 1357] 뒤집힌 덧셈 (java)

https://www.acmicpc.net/problem/1357

메모리: 14,256 KB , 시간: 104 ms

사용 알고리즘: 구현, 수학

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import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {

    public static void main(String[] args) throws Exception{

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        StringTokenizer st = new StringTokenizer(br.readLine());
        int X = Integer.parseInt(st.nextToken());
        int Y = Integer.parseInt(st.nextToken());

        System.out.println(rev(rev(X) + rev(Y)));
    }

    private static int rev(int num) {

        int ret = 0;

        while(num > 0) {

            ret = ret * 10 + num % 10;
            num /= 10;
        }

        return ret;
    }
}