import math
def solution(progresses, speeds):
answer = []
progresses = [math.ceil((100 - j)/speeds[i]) for i, j in enumerate(progresses)]
tmp = progresses.pop(0)
cnt = 1
for i in progresses:
if i <= tmp:
cnt += 1
else:
answer.append(cnt)
cnt = 1
tmp = i
answer.append(cnt)
return answer
[7, 3, 9]
시간이 걸리는것을 확인할수 있다.