(adsbygoogle = window.adsbygoogle || []).push({}); Well, I saw someone posted this on facebook so I figured I'd optimize and fix it up a bit. Anyways, here it is :p

My Version:

    #include <iostream>

#include <Windows.h>



using namespace std;



int main()

{	

	while (true)

	{

		int length = 50, randInt = rand() % 9, a = 0, b = 0, i = 0 , j = 0;

		SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), randInt);

		for (i; i < length; i++)

		{

			cout << "WELCOME";

			Sleep(50);

			system("cls");

			for (; j <= i; j++)

				cout << " ";

			

			j = 0;

		}

		system("cls");

		for (a; a < length - 1; a++)

		{

			for (b; b < length - 1; b++)

				cout << " ";

			

			cout << "WELCOME";

			Sleep(50);

			system("cls");

			b = a;

		}

	}

}

Their version:

    #include<iostream>

#include<windows.h>



using namespace std;

int main()

{

	int len=50;

	start:

/////////////forward////////

	int i=0;

	int j=0;

	for(i;i<len;i++)

	{

		cout<<"WELCOME";

		Sleep(50);

		system("cls");

		for (;j<=i;j++)

		{

			cout<<" ";

		}

		j=0;

	}

////////////////////////back////

	int a=0;

	int b=0;

	system("cls");

	for (a;a<len-1;a++)

	{	

		for(b;b<len-1;b++)

		{

			cout<<" ";

		}

		cout<<"WELCOME";

		Sleep(50);

		system("cls");

		b=a;

	}

	goto start;

}

What exactly is this for?