Factorial program in C++ using for Loop
Factorial Program in C++
#include<iostream>
#include<conio>
void main()
{
int i, no, fact=1;
cout<<"Enter the any no. : ";
cin>>no;
for(i=1;i<=no;i++)
{
fact=fact*i;
}
cout<<"Factorial: "<<fact;
}
Factorial program using do-while loop
#include<iostream>
#include<conio>
void main()
{
long n, i, fact=1;
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";
}
system("pause");
}
Factorial program using recursion in C++
#include<iostream.h>
#include<conio.h>
void main()
{
int fact(int);
int f, n;
cout<<"Enter any num: ";
cin>>n;
f=fact(n);
cout<<"\nFactorial : "<<f;
system("pause");
}
int fact(int a)
{
if(a==1)
return(1);
else
{
return(a*fact(a-1));
}
}
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