백준 7567 그릇

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

7567번: 그릇

 

public class Boj7567_그릇 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));


        char[] c = br.readLine().toCharArray();

        Stack<Character> stack = new Stack<>(); // int형 스택 선언

        int height = 10;

        stack.push(c[0]);

        for (int i = 1; i < c.length; i++) {
            if (stack.peek() == c[i]) {
                height += 5;
            } else {
                height += 10;
                stack.pop();
                stack.push(c[i]);
            }
        }
        System.out.println(height);
    }
}