Nice Programme to find BINOMIAL COEFFICIENT

[Nisal Priyanka]

//programme to find BINOMIAL COEFFICIENT - formular - n!/k!(n-k)!

#include<iostream>
#include<cstdlib>
using namespace std;
bool validateInput(int n, int k); //prototype the functions
int getfactorial(int n); //prototype the functions
int main()
{	
	int n,k,y;
	cout<<"Enter \'N\' and \'K\' "<<endl;
	cin>>n>>k;

	if(validateInput(n,k)==1) //valid the values that user has input
	{       
                //calling fuctions and apply the formular
		y = getfactorial(n)/(getfactorial(k)*getfactorial(n-k));	 

		cout<<"ANSWER IS : "<<y<<endl;				

	
	}
	else
	{
		cout<<"INVALID INPUTS, PLEASE RE-START THE PROGRAMME!"<<endl;
		system("PAUSE");
		return -1;
	}
system("PAUSE");
return 0;
}

bool validateInput(int n, int k) //functions to check Inputs
{
	bool result;
	if((n>0)&&(k>0)&&(k<n))
	{
		result = 1;
	}
	else
	{
		result = 0;
	}
return result;
}

int getfactorial(int n)//Function to get FACTORIALS
{
	int f=1;
	for(int i = 1;  i<=n;  )
	{
		f=f*i;
		i++;
		
	}
return f;
}

This is my 1st post. i am still learning c++, i am very happy to if you can receive some good programming practices.

AFTER DEBUGGED!

[ne555]

Test your code. Your factorial function is incorrect.

[Nisal Priyanka]

hmm.. ok, thanks

here its done now.. i correct some of my coding mistakes... i only test one value previously, that why i am not caught this i think :-D! thanks for the mentioning!