题解 | #记负均正#
记负均正
https://www.nowcoder.com/practice/6abde6ffcc354ea1a8333836bd6876b8
n = int(input())
num = list(map(int,input().split()))
listfu = [i for i in num if i < 0]
print(len(listfu),end=' ')
listzheng =[k for k in num if k >0]
if len(listzheng) == 0:
print(0.0)
else:
print('%.1f' % (sum(listzheng)/len(listzheng)))
#悬赏#
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