c++ assignment

1. Assignment no 5
1) WAP to find the factorial value of any no. entered through the
keyboard.
flowchart:

2. Program:
//c++ program to find the factorial value
#include<iostream.h>
#include<conio.h>
void main( )
{
clrscr( );
int a,f=1;
cout<<”Enter any number:”<<endl;
cin>>a;
for( int i=1; i<=a; i++)
{
f=f*i;
}
cout<<”Factorial of the entered number=”<<f;
getch();
}

3. output:
Enter any number:
5
Factorial of the entered number= 120
2) WAP to reverse any given integer no.

4. Program:
//c++ program to reverse the entered no
#include<iostream.h>
#include<conio.h>
void main( )
{
clrscr( );
int r,n,a=0;
cout<<”Enter any three digit number:”<<endl;
cin>>n;
cout<<”Reverse of the entered number is:”<<endl;
while(n!=0)
{
r=n%10;

5. a=a*10+r;
n=n/10;
cout<<r;
}
getch();
}
Output:
Enter any three digit number:
123
Reverse of the entered number is:
321
3) WAP to check whether the given no is prime or not..

6. Program:
//c++ program to check whether the given no is prime or not

7. #include<iostream.h>
#include<conio.h>
void main( )
{
clrscr( );
int a,c=0;
cout<<”Enter any number:”<<endl;
cin>>a;
for( int i=1;i<=a;i++)
{
if(a%1==0)
{
c++;
}
}
if(c==2)
{
cout<<”Entered number is prime”<<endl;
}

8. else
{
cout<<”Entered number is not prime”<<endl;
}
getch();
}
Output
Enter any number:
5
Entered number is prime