#include <stdio.h>
#define INITIAL_ARR_MSG "Initital array:\n"
#define REVERSED_ARR_MSG "Reversed array:\n"
#define SIZE 5

void print_arr_double(double [], int, char[]);
void reverse_arr_double(double [], int);

int main(void) {
  double array[SIZE] = {1.1,2.2,3.3,4.4,5.5};

  print_arr_double(array, SIZE, INITIAL_ARR_MSG);
  reverse_arr_double(array, SIZE);
  print_arr_double(array, SIZE, REVERSED_ARR_MSG);

  return 0;
}

void print_arr_double(double arr[], int size, char msg[]){
  printf("%s", msg);
  for (int i = 0; i < size; i++){
    printf("%f\n", arr[i]);
  }
}

void reverse_arr_double(double arr[], int size){
  double temp = 0.0;
  for (int i = 0; i < size/2; i++){
    temp = arr[i];
    arr[i] = arr[size-1-i];
    arr[size-1-i] = temp;
  }
}