题解 | #记负均正II#
记负均正II
https://www.nowcoder.com/practice/64f6f222499c4c94b338e588592b6a62
a = []
n = 0
while True:
try:
tmp=int(input())
if tmp<0:
n+=1
else:
a.append(tmp)
except:
break
if len(a) == 0:
print(n)
print("0.0")
else:
print(n)
print(f"{sum(a)/len(a):.1f}")
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