题解 | #记负均正II#
记负均正II
https://www.nowcoder.com/practice/64f6f222499c4c94b338e588592b6a62?tpId=37&tqId=21328&rp=1&ru=/exam/oj/ta&qru=/exam/oj/ta&sourceUrl=%2Fexam%2Foj%2Fta%3FtpId%3D37&difficulty=undefined&judgeStatus=undefined&tags=&title=105
import sys
neg, act, s = 0, 0, 0
for line in sys.stdin:
num = int(line)
if num < 0:
neg += 1
elif num > 0:
act += 1
s += num
print("{}\n{:.1f}".format(neg, s/act if act != 0 else 0))
