2018 Kakao Blind Recruitment - [1차] 다트 게임

코딩테스트 연습 - Level 1 - [1차] 다트 게임

https://programmers.co.kr/learn/courses/30/lessons/17682

#include <string>
#include <cmath>
using namespace std;

int solution(string dartResult) {
    int answer = 0;
    int score[3]={0,},key=0;
    string num;
    for(int i=0;i<dartResult.size();i++)
    {
        if(isdigit(dartResult[i]))
        {
            num.push_back(dartResult[i]);
        }
        
        else
        {
            if(dartResult[i]=='S')
            {
                score[key++]=stoi(num);
            }
            
            else if(dartResult[i]=='D')
            {
                score[key++]=pow(stoi(num),2);
            }
            
            else if(dartResult[i]=='T')
            {
                score[key++]=pow(stoi(num),3);
            }
            
            else if(dartResult[i]=='*')
            {
                if(key-2>=0)
                {
                    score[key-2]*=2;                    
                }
                
                score[key-1]*=2;
                
            }
            
            else if(dartResult[i]=='#')
            {
                score[key-1]*=-1;
            }
            num="";
        }
    }
    for(int i=0;i<3;i++)
    {
        answer+=score[i];
    }
    return answer;
}