Coding-Practice/programmers/[1차] 다트 게임/solution.java

// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/17682

import java.util.HashMap;
class Solution {
    public int solution(String dartResult) {
        int answer, a, b, ind, data = ind = b = a = answer = 0;
        int len = dartResult.length();
        HashMap<Integer,Integer> db = new HashMap<>();
        for(int c = 0; c < 3; c++){
            int d = 0;
            b = Character.getNumericValue(dartResult.charAt(ind));
            if(dartResult.charAt(ind+1) == '0') {
                d = 1; b = 10;
            }
            switch(dartResult.charAt(ind+1+d)){
                case 'S': a = 1; break;
                case 'D': a = 2; break;
                case 'T': a = 3; break;
            }
            data = (int)Math.pow(b,a);
            db.put(c,data);
            if(ind+d+2 < len){
                if(dartResult.charAt(ind+d+2) == '*'){
                    if(c > 0) db.put(c-1,db.get(c-1)*2);
                    db.put(c,db.get(c)*2);
                    ind += 3+d;
                }
                else if(dartResult.charAt(ind+d+2) == '#'){
                    db.put(c,db.get(c)*(-1));
                    ind += 3+d;
                } else ind += 2+d;
            }
        }
        for (int i = 0; i < 3; i++){
            answer += db.get(i);
        }
        return answer;
    }
}