[프로그래머스] 기능개발 (Javascript)

 

 

문제

코딩테스트 연습 - 기능개발

 

 

 

 

 

풀이

function solution(progresses, speeds) {
    var answer = [];
    let days = 1;
    let count = 0;
    
    for(let i = 0; i < progresses.length; i++) {
        
        while(progresses[i] + days * speeds[i] < 100) {
            days++;
        }

        if(progresses[i] + days * speeds[i] >= 100) {
            if(progresses[i+1] + days * speeds[i+1] >= 100) {
                count++
            } else {
                count++
                answer.push(count);
                count = 0
            }
        }
    }
    
    return answer;
}

[내 풀이]

 

 

 

 

 

 

function solution(progresses, speeds) {
    let answer = [0];
    let days = progresses.map((progress, index) => Math.ceil((100 - progress) / speeds[index]));
    let maxDay = days[0];

    for(let i = 0, j = 0; i< days.length; i++){
        if(days[i] <= maxDay) {
            answer[j] += 1;
        } else {
            maxDay = days[i];
            answer[++j] = 1;
        }
    }

    return answer;
}

[다른분의 풀이]