prog-student

// ConsoleApplication2.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <math.h>
void my_func(double *x, double *y);
int _tmain(int argc, _TCHAR* argv[])
{
    double number_a = 3, number_b = 3;
    printf("%lf %lf\n", number_a, number_b); // 3 4
    my_func(&number_a, &number_b);
    printf("%lf %lf\n", number_a, number_b); // 6 8
    number_a =5, number_b = 4;
    printf("%lf %lf\n", number_a, number_b); // 5 4
    my_func(&number_a, &number_b);
    printf("%lf %lf\n", number_a, number_b); // 25 16
    return 0;
}

void my_func(double *x, double *y)
{
    if (*x < *y)
    {
        *x = *x * 2;
        *y = *y * 2;
    }
    else if (*x == *y)
    {
        *x = *y = 0;
    }
    else
    {
        *x = (*x) * (*x); //*x = pow(*x,2);
        *y = (*y) * (*y); //*y = pow(*y,2);
    }
}