题解 | #计算题目难度#
计算题目难度
https://www.nowcoder.com/practice/76ae981719834b92b877bdc9ac6d38f3
def difficulty(grade_list):
sum=0
c=0
for i in range(len(grade_list)):
sum+=grade_list[i]
if grade_list[i]==100:
# 记录满分数
c+=1
# 平均分
avg=sum/len(grade_list)
# 难度
dif=avg/c
return dif
n=list(map(int,input().split()))
# 调用函数
diff=difficulty(n)
print('%.1f'%diff)