题解 | #记负均正#
记负均正
https://www.nowcoder.com/practice/6abde6ffcc354ea1a8333836bd6876b8
n1=int(input())
n2=input()
count=0
sum=0
count2=0
#print(n2)
n3=n2.split(' ')
#print(n3)
for i in n3:
if int(i)<0:
count=count+1
elif int(i)>0:
sum=sum+int(i)
count2=count2+1
elif int(i)==0:
continue
if count2==0:
print(count,0.0)
else:
print(count,round(sum/count2,1))
n2=input()
count=0
sum=0
count2=0
#print(n2)
n3=n2.split(' ')
#print(n3)
for i in n3:
if int(i)<0:
count=count+1
elif int(i)>0:
sum=sum+int(i)
count2=count2+1
elif int(i)==0:
continue
if count2==0:
print(count,0.0)
else:
print(count,round(sum/count2,1))
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