题解 | #记负均正II#

import sys
list1,list2=[],[]
for line in sys.stdin:
    a = int(line.strip())
    list1.append(a)
count1 = 0
for i in list1:
    if i < 0:
        count1 +=1
        list2.append(i)
list3 = [x for x in list1 if x not in list2]
if list3:
    avg1 = round(sum(list3)/len(list3),1) 
    print(count1)
    print(avg1)
else:
    print(count1)
    print("0.0")