题解 | #记负均正#
记负均正
http://www.nowcoder.com/practice/6abde6ffcc354ea1a8333836bd6876b8
round 函数真好用
num = input()
num_list = [int(i) for i in input().split(' ')]
count = 0
over_list = []
for number in num_list:
if number<0:
count += 1
elif number > 0:
over_list.append(number)
if len(over_list) == 0:
print(count,0.0)
else:
print(count,round(sum(over_list)/len(over_list),1))
