N = int(input())
stickList = list(map(int,input().split()))
KList = list(map(int,input().split()))

def countCuttedSticks(stickList, cutLength):
    count = 0
    for stick in stickList:
        count += stick // cutLength
    
    return count
    
def main():
    for K in KList:
        low = 0
        high = max(stickList)
        if countCuttedSticks(stickList, high) == K:
            print(high)
        else:
            previousAns = -1
            while(high - low >= 10 ** -8):
                ans = (low + high) / 2
                if countCuttedSticks(stickList, ans) >= K: # 本数を少なくするために切る長さを長くする
                    low = ans
                else: # 本数を多くするために切る長さを短くする
                    high = ans
                
            print(ans)

if __name__ == '__main__':
    main()