题解 | #记负均正#
记负均正
https://www.nowcoder.com/practice/6abde6ffcc354ea1a8333836bd6876b8
def mean(nums):
if len(nums)==0:
return 0.0
else:
return round(sum(nums)/len(nums),1)
n = int(input().strip())
nums = list(map(int,input().strip().split()))
positive = []
neg = 0
for i in nums:
if i>0:
positive.append(i)
elif i <0 :
neg +=1
print(neg,mean(positive))