题解 | #计算题目难度#
计算题目难度
https://www.nowcoder.com/practice/76ae981719834b92b877bdc9ac6d38f3
#这个题目说的不是很清楚，导致我刚开始理解有误，难度=平均分/满分数，其中满分数是满分100的个数，我以为是满分100；
num = input().split()
sum = 0
b = 0
# print(len(num))
for i in num:
sum = sum + int(i)
if i == '100':
b = b + 1
# print(sum)
average = sum/len(num)
# print(average)
av = average/b
print('%.1f'%av)
