题解 | #记负均正II#
记负均正II
https://www.nowcoder.com/practice/64f6f222499c4c94b338e588592b6a62
import sys
num =[]
ii=0
iii=0
for line in sys.stdin:
a = line.split()
for i in a:
if int(i)<0:
num.append(i)
else:
ii=ii+int(i)
iii=iii+1
print(len(num))
if iii ==0:
print('0.0')
else:
print("{:.1f}".format(ii/iii))
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