[BOJ] 7567 그릇 (JAVA)

https://www.acmicpc.net/problem/7567

7567번: 그릇

import java.io.BufferedReader;
import java.io.InputStreamReader;

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

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String str = br.readLine();

        int sum = 10;
        char pre = str.charAt(0);
        char now = pre;

        for (int i = 1; i < str.length(); i++) {
            now = str.charAt(i);
            if (now == pre) sum += 5;
            else {
                pre = now;
                sum += 10;
            }
        }

        System.out.print(sum);

    }

}