factorial (!)

[Stunning]

how can i create the formula to calculate n!

[freddy92]

Have you tried anything yet?

[Fovv]

cin>>n
answer = 1
do
{
answer *=n
n-=1
}while(n>1)

Something like this maybe??

[Stewbond]

int fact(int n)
{
  if (n <= 0) return 1;
  return n * fact(n-1);
}

[kalicha]

int main()
{
int i, n;
int fact=1;
cout<<"Enter the Value of n:";
cin>>n;
for(i=n ; i>=1 ; i--)
fact = fact*i;
cout<<Factorial: "<<fact;
return 0;
}