[프로그래머스]JAVA 기능개발

링크 : https://programmers.co.kr/learn/courses/30/lessons/42586

코딩테스트 연습 - 기능개발

import java.util.*;
import java.util.List;

class Solution {
    public int[] solution(int[] progresses, int[] speeds) {
        int[] answer = {};

        List<Integer> answers = new ArrayList<>();
        List<Work> works = new ArrayList<>();
        
        //세팅
        for(int i=0; i< progresses.length; i++){
            works.add(new Work(progresses[i], speeds[i]));
        }

        //루프
        while(works.size() > 0){
            // 임시 완료 리스트
            List<Work> finished = new ArrayList<>();
            works.stream().forEachOrdered(Work::doWork);

            Iterator<Work> iterator = works.iterator();
            //루프
            while(iterator.hasNext()){
                Work now = iterator.next();
                //첫 작업 확인
                if(now.checkFinish()){
                    finished.add(now);
                    iterator.remove();
                }else //순차 확인후 루프 중단
                    break;
            }
            
            //완료 작업수 추가
            int finishedSize =finished.size();
            if(finishedSize > 0){
                    answers.add(finishedSize);
            }
        }
        answer = answers.stream().mapToInt(v->v).toArray();
        return answer;
    }
    
    public class Work{
        int progress;
        int speed;

    public Work(int progress, int speed) {
        this.progress = progress;
        this.speed = speed;
    }

    public int doWork(){
        if(!checkFinish()) {
            progress += speed;
        }
        return progress;
    }

    public boolean checkFinish(){
        return progress >= 100;
    }

    @Override
    public String toString() {
        return "\n Work{" +
                "progress=" + progress +
                ", speed=" + speed +
                '}';
    }
    }
}