题解 | #记负均正II#
记负均正II
http://www.nowcoder.com/practice/64f6f222499c4c94b338e588592b6a62
import sys
f_count = 0
ff_count = 0
ff_sum = 0
while True:
try:
c = int(input())
if c < 0:
f_count += 1
else:
ff_count += 1
ff_sum += c
except:
break
print(f_count)
if ff_count == 0:
print("0.0")
else:
print(f"{ff_sum/ff_count:0.1f}")
