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C++ Programming Code Examples

C++ > For Loops and While Loops Code Examples

Factorial program using do-while loop



Factorial program using do-while loop

#include<iostream.h>
#include<conio.h>

 void main()
  {
   long n, i, fact=1;
   clrscr();
   cout<<"Enter any num: ";
   cin>>n;
   i=n;
   if(n>=0)
    {
   do
    {
    fact=fact*i;
    i--;
    }
   while(i>0);
   cout<<"\nFactorial: "<<fact;
   }
   else
    {
   cout<<"fact of -ve num. is not possible";
    }
   getch();
  }

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