3. Write a program to find the factorial value of any number entered through the keyboard.


#include<iostream>
using namespace std;

int main()
{
    long i = 1,n,fact =1;
    cout<<"Enter any number :: ";
    cin>>n;

    while(i<=n)
    {
        fact *=i;
        i++ ;  // i = i +1
    }
    cout<<"\nFactorial  = "<<fact;
    return 0;
}

#include<iostream> using namespace std; int main() { long n,fact =1; cout<<"Enter any number :: "; cin>>n; while(n>=1) { fact *=n; n-- ; // i = i +1 } cout<<"\nFactorial = "<<fact; return 0; }
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