题解 | 记负均正II

arr = []
while True:
    try:
        n = int(input())
        arr.append(n)
    except:
        break

n = 0  # 负数的个数
nums = []  # 非负数

for i in arr:
    if i < 0:
        n += 1
    else:
        nums.append(i)

print(n)

if len(nums) > 0:
    avg_nums = round(sum(nums) / len(nums), 1)
    print(avg_nums)
else:
    print(0.0)