题解 | #记负均正II#
记负均正II
https://www.nowcoder.com/practice/64f6f222499c4c94b338e588592b6a62
n_neg = 0
n_non = 0
sum = 0
while True:
try:
num = int(input())
if num >= 0:
n_non += 1
sum += num
else:
n_neg += 1
except:
break
print(n_neg)
if n_non:
print(format(sum/n_non, '.1f'))
else:
print('0.0')
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