原题传送门

1. 问题描述

2. Solution

neg_cnt = 0
pos_sum = 0
pos_cnt = 0

while True:
    try:
        n = int(input().strip())
        if n < 0:
            neg_cnt += 1
        elif n > 0:
            pos_sum += n
            pos_cnt += 1
    except:
        break

print(neg_cnt)
if pos_cnt:
    print(round(pos_sum / pos_cnt, 1))
else:
    print(0.0)

标签：cnt,neg,sum,pos,牛客,elif,print,机试,HJ105
来源： https://www.cnblogs.com/junstat/p/16181413.html