Odd / Even numbers

I saw this on the forum about 3 weeks ago but can't seem to find it.

All I want to do is differentiate between an odd and even integer entered by the user:

Code:

---

int main ()
{
        int number;
 
        cout << "Number: ";
        cin >> number;
 
        // test etc
 
        return 0;
}

---

You can use a modulus of 2 to check for a remainder, or do a bit-wise AND with 1.

gg

Thank you! Maths was never my strong point.... :(

Maybe you shouldn't be programming then.. programming involves a lot of math

in my school my Math teacher had a chart thing it had over 100 professions on it and lot of math things on the side, and if the profession required the math thing it had a dot..

only two that had the whole columns full were Programmer and physicist

Oh don't worry man I've been programming for 4 years and 5 months (not sure about the days ;)) and any maths problems I have I find enjoyable to solve by picking up a good maths book.

For some reason I find it hard to learn maths, not sure why. Programming and computing are my passions :)

Math Lesson of the day

what the cubed root of 512, no cheats!!!!

and only ahluka can answer.

128 :p

close its 8


8 * 8 * 8 = 512

Oh no, my 3rd U grade in Maths this year.

*points gun to head*

Code:

---

if(number % 2) {  /* number is odd */

}
else {  /* number is even */

}

---

Cool programmers simply write:

Code:

---

bool is_odd(unsigned int x);
bool is_even(unsigned int x);

bool is_odd(unsigned int x)
{
    if (x) return is_even(x - 1);
    return false;
}

bool is_even(unsigned int x)
{
    if (x) return is_odd(x - 1);
    return true;
}

---

;-)

Yeah really cool. Superfast especially for big numbers. I hope cool was a synonym for dumb.

>programming involves a lot of math
It depends on the field. In my experience, the only math that is required is basic arithmetic. Higher math helps, but not for everyday programming.