Python题解 | #记负均正II#
记负均正II
https://www.nowcoder.com/practice/64f6f222499c4c94b338e588592b6a62
import sys
ans = 0
count = 0
arr = []
sum_ = 0
while True:
try:
n = int(input())
if n < 0:
ans += 1
else:
count += 1
sum_ += n
except:
break
print(ans)
if sum_ == 0:
print(0.0)
else:
print("%.1f" % (sum_ / count))
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