Anti-Loopist's Answer to 1+2+3...

[NewHydrolisk]

My fourth project, and the only that works properly (so far).
This is my first project submitted here though.

It simply does a 1+2+3+4...+100 thing, but you can pick the numbers it starts and ends at. Perhaps it is faster than a loop.
It's less than an MB, and the formula used is inside the program.
I don't think bugs are possible...

You need Windows (because I use Windows, but only because of the "system(Pause)" command at the end). Sorry other OS users!

[md]

No source code? I would recommend no one run this unless source is provided, and even then I'd compile it myself.

[NewHydrolisk]

Oops. Sorry. I'll post

Alright, since this is my first time here (submitting), I wasn't very sure what to put.

In the ZIP, there is a readme with the source code.

By the way, it was written in C++.

[md]

No problem, I'm just very anti-executables. Mostly since a) they are platform dependent and b) it's super easy to hide a virus in an executable. It's harder in source code.

[Tony]

NewHydrolisk @ Fri Oct 26, 2007 7:19 pm wrote:

You need Windows (because I use Windows, but only because of the "system(Pause)" command at the end). Sorry other OS users!

You don't really need system(Pause), do you?

[NewHydrolisk]

Well, I used Visual Basic C++, and when I compiled it, the program exited immediately after you entered the first 2 numbers, which sort of drove me off the edge of sanity, and so I bashed it in because of my impatience. (Was trying to find an answer for 2 days...)

[rdrake]

NewHydrolisk @ Sat Oct 27, 2007 7:18 pm wrote:

Well, I used Visual Basic C++

Visual C++?

[Clayton]

Whatever happened to just making an executable and executing from the command line?

[wtd]

Not enough bling value. IDEs are the twenty inch chrome rims of the programming world.

[wtd]

Note: I am still not seeing code.

[Tony]

the chrome is rusty, the program still fires up cmd for the duration of its life. Where's DirectX with the flare effect?!

[NewHydrolisk]

Source Code Below:

code:

#include <iostream> using namespace std; int main() {   int b, c;   cout << "(If it isn't completely numerical, the answer will be varying.)\n(The answer will also vary if the numbers are too large.)" << endl;   cout << "This was created and coded by Luang Cui." << endl;   cout << "Thanks to my father for the mathematical formula." << endl;   cout << "Please, enter a smaller integer first, then a larger integer." << endl;   char question[] = "First integer: ";   int a;   cout << question;   cin >> a;   char question2[] =  "Second integer: ";   int d;   cout << question2;   cin >> d;   if (a<d)   {           char answer[] = "Output, ";   b= d;   c= ((a + b) * ((b - a) + 1)) / 2;   cout << answer << c << "." << endl;   cout << "The output is reached by a special mathematical formula." << endl;   cout << "The pattern adds 1 to the smaller integer continuously until the next integer is equal to the larger integer." << endl;   cout << "EXAMPLE: 1+2+3...+100." << endl;   cout << "The formula is: {(X+Y)*[(Y-X)+1]}/2, where X is the smaller integer and Y is the larger." << endl;   }    else     {           cout << "The first integer is larger than or equal to the second!" << endl;     }   system("PAUSE");   return 0; }

Alright, that's the source.

C++

[Tony]

It compiles and runs wonderfully on OS X, but it throws a warning when it gets to the Pause line -- you should really take that out.

Quote:

sh: line 1: PAUSE: command not found

also - what's the reasoning behind

code:

char question[] = "First integer: ";   cout << question;

why not just

code:

cout << "First integer: ";

[NewHydrolisk]

I'm not sure myself why I had

code:

char question[] = "First integer: ";

in there.

Thanks for the... hint thing though.

EDIT: I remember... I was following a tutorial, and so I had just put that there... Damn, I'm not too smart.

[michaelp]

If you use Code::Blocks as your IDE, it might automatically put a stop line in your code. Whenever I run it from the IDE, it stops and says how long it was up.