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.

Restricciones

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

Ejemplos

Entrada:
numbers = [2, 8, 4, 10]

Salida esperada:
expected = 6.0

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

Salida esperada:
double expected = 6.0;

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

Salida esperada:
double expected = 6.0;

Entrada:
numbers = [9, 1, 4]

Salida esperada:
expected = 4.0

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

Salida esperada:
double expected = 4.0;

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

Salida esperada:
double expected = 4.0;

Referencias

Este reto está adaptado para CodeUtility. Sigue el enunciado y las restricciones indicadas arriba.

• #15 Median