기능개발

https://programmers.co.kr/learn/courses/30/lessons/42586?language=java 

코딩테스트 연습 - 기능개발

package programmers.stackandqueue;

import java.util.Arrays;

public class Solution {

    public int[] solution(int[] progresses, int[] speeds) {
        int[] answer = new int[100];

        int day = 0;

        for (int i = 0; i < progresses.length; i++) {
            while (progresses[i] + (speeds[i] * day) < 100) {
                day++;
            }
            answer[day] += 1;
        }
        // 0이 아닌 요소만 꺼내서 리턴해주기
        return Arrays.stream(answer).filter(i -> i!=0).toArray();
    }

    public static void main(String[] args) {
        Solution sol = new Solution();

        System.out.println(Arrays.toString(sol.solution(new int[]{93, 30, 55}, new int[]{1, 30, 5})));
    }
}