C++ Exercises: Check three given integers and return true if the difference between small and medium and the difference between medium and large is same

#include <iostream>

using namespace std;

// Function 'test' checks if the differences between the numbers are equal
bool test(int x, int y, int z)
{
    // Checks for the condition when x is the largest number
    if (x > y && x > z && y > z)
        return x - y == y - z; // Returns true if differences are equal

    // Checks for the condition when x is the largest number, but z is the smallest
    if (x > y && x > z && z > y)
        return x - z == z - y; // Returns true if differences are equal

    // Checks for the condition when y is the largest number
    if (y > x && y > z && x > z)
        return y - x == x - z; // Returns true if differences are equal

    // Checks for the condition when y is the largest number, but z is the smallest
    if (y > x && y > z && z > x)
        return y - z == z - x; // Returns true if differences are equal

    // Checks for the condition when z is the largest number
    if (z > x && z > y && x > y)
        return z - x == x - y; // Returns true if differences are equal

    // Returns true if differences are equal (when z is the largest number and y is the smallest)
    return z - y == y - x;
}

int main() 
{
    // Testing the 'test' function with different sets of numbers
    cout << test(4, 5, 6) << endl;  
    cout << test(7, 12, 13) << endl; 
    cout << test(-1, 0, 1) << endl;
    return 0;    
}