题解 | #记负均正II#
记负均正II
https://www.nowcoder.com/practice/64f6f222499c4c94b338e588592b6a62
fu = []
feifu = []
while 1:
try:
num = int(input())
if num<0:
fu.append(num)
else:
feifu.append(num)
except:
break
print(len(fu))
if len(feifu)==0:
print(0.0)
else:
print(round(sum(feifu)/len(feifu),1))
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