Thread: Simple valid/invalid function problem.

Hi,
I have to write a code which would determine either a URL address
is correct or not.

Now, a valid address should look like: "www.something.something.uk".
It has to have 3 dots, 3 w-s in the beginning, and it must end with "uk".

eg.
Valid addresses:
1. www.jce.ac.uk
2. www.tr2213.oi34.uk

Invalid addresses:
1. www2.jce.ac.uk
2. òæøéàìé - îëììä à÷ãîéú ìäðãñä éøåùìéí - ìéîåãé äðãñä ìúåàø øàùåï
3. www.something.uk

Just to be clear, this criteria mentioned above is not real, just homework

My code:

Code:

#include <iostream>
#include <string.h>
using namespace std;


int isValid (char s[])
{
	int dots=0;
	if ((s[0]!='w') || (s[1]!='w') || (s[2]!='w') || (s[3]!='.')) return 0;
	else
	{
		dots++;
		if (s[4]=='.') return 0;
		else
		{
			for (int i=5;i<(strlen(s));i++)
			{
				if (s[i]=='.') dots++;
				if ((s[i]=='.')&&(s[i+1]=='.')) return 0;
			}
		}
	}
	if ((s[(strlen(s)-1)]=='k') && (s[(strlen(s)-2)]!='u') && (dots==3)) return 1;
	else return 0;
}


void main()
{
	char string1[14]="www.jce.ac.uk", string2[18]="www.dsa.dsa.gt.uk";
	if (isValid(string1)) cout << "string1 - correct\n"; else cout << "string1 - incorrect\n";
	if (isValid(string2)) cout << "string2 - correct\n"; else cout << "string2 - incorrect\n";
}

It tells me both strings are incorrect but the first 1 is.
Thanks for the help!

Oh I'm sorry, didnt know that.
I'm using C, why should I stop using cout?

Okay toda
Saw you are from Rashlatz, Im from Jerusalem