Python array [HELP]

Question

Description: Make a program that displays the average between the highest and lowest value of an integer vector with twenty user-given elements and, at the end, displays only those elements that are greater than average.

Input format: Twenty whole numbers, one per line.

Output format: In the first line, the phrase "media: #" (without quotation marks, in lower case, without accentuation and with # replaced by the average of the numbers read and with two decimal places); in the following lines, the values given in the input are greater than the average, in the same sequence as read and one per line

Code that is being used:

arr = []
soma = 0
for p in range(20):
    x= int(input())
    arr.append(x)
    soma = soma + x

media = soma // len(arr)

if media < 0:
    print('media: 0.00')
else:
    print('media: %.2f' % media)

for b in range(20):
    if arr[b] > media:
        if arr[b] != 0:
            print(arr[b])

When I submit, the first two test cases of the program, it works, however, the last two test cases, it does not work, and the program does not hint what is occurring, I think there is some wrong part, or some gambiarra that I have done...

Entrada:
5
1
7
-6
-9
-6
0
-2
10
-6
-8
3
-4
-9
9
8
-7
3
-7
-10

Saída

media: 0.00
5
1
7
10
3
9
8
3

Answer 1

From what I understood from the description of the problem, the mean must be made between the maximum value and the minimum value of the vector. In your program you try to average all vector values. I believe the program below meets your description:

vec = list()

for i in range(20):
    vec.append(int(input()))

media = (max(vec) + min(vec)) / 2

print("media: %.2f" % media)

for i in range(20):
    if vec[i] > media:
        print(vec[i])