def solution(progresses, speeds): answer = [] while (progresses!=[]): ed=[] # complete len_p=len(progresses) for i in range(len_p): progresses[i]+=speeds[i] for i in range(len_p): if progresses[i]>=100: ed.append(progresses[i]) else: break if ed!=[]: answer.append(len(ed)) for i in ed: del progresses[0] del speeds[0] return answer