Thread: Need a challenge

Hey guys,

I'm kind of new to programming, and i set my self a task to make a program that find 25% of any number, well i did it in a couple of hours using the following code

Code:

#include <iostream>

using namespace std;

float main()
{
 float num1;


 {
 cout <<"this a simple percentage program";
 cout <<endl;
 cout <<"to find 25% of any number";
 cout <<endl;
 }
 float x = 10;
 while ( x = 10 ){
 cout <<"insert the number you want to find 25 percentage of:  ";
 cin >> num1;
 cout <<"the percentage of:  "<< num1 << endl;
 cin.get();
 cout <<"would be: "<< 25 * num1 / 100 << endl;
 cin.get();
 x++;
 }

 return 1;
}

Now i feel i need a new task but can't think of anything suitable, so I wonderd if you guys and gals had any ideas?

Thanks
Dave

http://www.mathschallenge.net/index.php?section=project

Your next task should be to change your existing code to be more correct. For example, main should specify int as its return value, not float. Also, while (x = 10) is not what you want. Remember (or learn) the difference between assignment and equality. Finally, standard practice is to return 0 to signify success. Better code formatting would also be a good thing to practice with a working program.

Originally Posted by 7stud

Then consider this: why do you want to learn a language you have no use for?

I want be a games programmer when i'm older, i need somewhere to start right?, I can't jump straight in i need to work my way up. before i can start practicing that kind of stuff, i need to know basics and get used to everything.

I want be a games programmer when i'm older

Now i feel i need a new task but can't think of anything suitable

I know what your saying, but i still don't think i have enough skillz to make a basic game..

Don't worry about making a game yet. Just learn good programming habits (see my previous post) and do some easy programs until you can do them well. I believe there are some problems you can work on from this site's main pages.

One common problem that would fit as an extension to your current code is to make a calculator program. Start simply, with addition only, and expand it one step at a time.

Originally Posted by Daved

D
One common problem that would fit as an extension to your current code is to make a calculator program. Start simply, with addition only, and expand it one step at a time.

hehe that was actually an idea i had , but wasn't sure, i'll try it, should be harder than the percentage one.

just to add, i made it float becuase it returns results with decimal
points.

Originally Posted by grohyt

just to add, i made it float becuase it returns results with decimal points.

You're actually wrong there. The function main() itself does not return results in decimal points... It returns a 1. You're perhaps thinking that what you output to the user (which might be a decimal point) is actually what main() returns, which as stated is not the case. Read a little bit about functions in C++ and you'll hopefully understand what I mean.