Desafío de programación Array Maximum

Problema

Return the largest value in the list by checking each element once.

Implement array_maximum(numbers).

numbers: A non-empty list of integers.

Return the maximum.

1 ≤ length ≤ 100,000

Ejemplo 1

Entrada:
numbers = [3, 9, 2]

Salida esperada:
expected = 9

Entrada:
std::vector<long long> numbers = {3, 9, 2};

Salida esperada:
long long expected = 9;

Entrada:
long[] numbers = new long[] {3, 9, 2};

Salida esperada:
long expected = 9;

9 is larger than 3 and 2.

Ejemplo 2

Entrada:
numbers = [-4, -1, -7]

Salida esperada:
expected = -1

Entrada:
std::vector<long long> numbers = {-4, -1, -7};

Salida esperada:
long long expected = -1;

Entrada:
long[] numbers = new long[] {-4, -1, -7};

Salida esperada:
long expected = -1;

With only negative values, -1 is the largest.

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