(Java)프로그래머스 코딩테스트 연습 - 스택/큐 - 기능개발

1. 문제

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

코딩테스트 연습 - 기능개발

2. 나의 풀이

import java.util.ArrayList;


class Solution {
    public ArrayList<Integer> solution(int[] progresses, int[] speeds) {
        int [] remain_time = new int [progresses.length];
        for(int i = 0; i < progresses.length; i = i + 1) {
        	int imsi = 0;
        	imsi += (100 - progresses[i]) / speeds[i];
        	if((100 - progresses[i]) % speeds[i] != 0) {
        		imsi += 1;
        	}
        	remain_time[i] = imsi;
        }
        
        //System.out.println(Arrays.toString(remain_time));
        ArrayList <Integer> answer = new ArrayList <>();
        for(int i = 0; i < remain_time.length; i = i + 1) {
        	int imsi = 0;
        	for(int j = i; j < remain_time.length; j = j + 1) {
        		if(remain_time[i] >= remain_time[j]) {
        			imsi += 1;
        		}else if(remain_time[i] < remain_time[j]) {
        			break;
        		}
        	}
        	i = i + (imsi - 1);
        	answer.add(imsi);
        }
        return answer;
    }
}

3. 다른 사람 풀이

import java.util.ArrayList;
import java.util.Arrays;
class Solution {
    public int[] solution(int[] progresses, int[] speeds) {
        int[] dayOfend = new int[100];
        int day = -1;
        for(int i=0; i<progresses.length; i++) {
            while(progresses[i] + (day*speeds[i]) < 100) {
                day++;
            }
            dayOfend[day]++;
        }
        return Arrays.stream(dayOfend).filter(i -> i!=0).toArray();
    }
}