原题传送门

1. 题目描述

2. Solution

import sys

if sys.platform != "linux":
    file_in = open("input/HJ97.txt")
    sys.stdin = file_in

while True:
    try:
        n = int(input().strip())
        nums = list(map(int, input().strip().split()))
        neg_nums = [x for x in nums if x < 0]
        pos_nums = [x for x in nums if x > 0]
        print(len(neg_nums), end=" ")
        if pos_nums:
            print(round(sum(pos_nums) / len(pos_nums), 1))
        else:
            print(0)
    except Exception as e:
        print(e)
        break

标签：nums,int,pos,sys,牛客,input,print,机试,HJ97
来源： https://www.cnblogs.com/junstat/p/16181401.html