/******************************************************************************
 * This program performs a math trick.
 * 
 * Copyright © 2020 Richard Lesh.  All rights reserved.
 *****************************************************************************/

#undef NDEBUG

#include <cmath>
#include <ctime>
#include <iostream>
#include <string>

using namespace std;

int main(int argc, char **argv) {
    srand(time(0));
    int value = int(100 * (rand()/(RAND_MAX + 1.0)));
    int const ORIGINAL_VALUE = value;
    cout << "Value: " << value << endl;
    value *= 2;
    cout << "Double Value: " << value << endl;
    value += 10;
    cout << "Now add 10: " << value << endl;
    value /= 2;
    cout << "Cut in half: " << value << endl;
    value -= ORIGINAL_VALUE;
    cout << "Subtract Original Value: " << value << endl;
    cout << "Answer above should be 5" << endl;
    return 0;
}