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#include <iostream>
int get_something_from_array(const int* arr, size_t size, int result, int (*func)(int,int) )
{
if (size == 0)
return result;
return get_something_from_array(arr + 1, size - 1, func(result, *arr), func);
}
int max(int a, int b)
{
return a > b ? a : b;
}
int getMaxFromArray(const int* arr, size_t size)
{
return get_something_from_array(arr, size, INT_MIN, max);
}
int sum(int x, int y)
{
return x + y;
}
int getSumOnArray(const int* arr, size_t size)
{
return get_something_from_array(arr, size, 0, sum);
}
int main()
{
const size_t SIZE = 4;
int arr[SIZE] = { 1, 2, 3, 4 };
std::cout << getSumOnArray(arr, SIZE) << std::endl << getMaxFromArray(arr, SIZE) << std::endl;
}
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