Median of a List

Sort the values into ascending order. For an odd number of values, take the middle one. For an even number, take the arithmetic mean of the two middle values. This challenge accepts only nonempty lists.

Implement median_number(numbers).

Input

numbers: The nonempty list of values.

Output

Return the median as a number; it may end in .5.

Contraintes

1 ≤ list length ≤ 100,000. Each value is an integer between −1,000,000,000 and 1,000,000,000.

Exemples

Entrée :
numbers = [2, 8, 4, 10]

Sortie attendue :
expected = 6.0

Entrée :
std::vector<long long> numbers = {2, 8, 4, 10};

Sortie attendue :
double expected = 6.0;

Entrée :
long[] numbers = new long[] {2, 8, 4, 10};

Sortie attendue :
double expected = 6.0;

Entrée :
numbers = [9, 1, 4]

Sortie attendue :
expected = 4.0

Entrée :
std::vector<long long> numbers = {9, 1, 4};

Sortie attendue :
double expected = 4.0;

Entrée :
long[] numbers = new long[] {9, 1, 4};

Sortie attendue :
double expected = 4.0;

Références

Ce défi a été adapté pour CodeUtility. Suivez l'énoncé et les contraintes ci-dessus.

• #15 Median