question 4

#include <iostream.h>
#define size 5 // defining Size of the array


void printArray(int arr[]);
void rotateByOne(int arr[]);

int main()
{
	 int i, num;
	 int arr[size];

	 cout<<"Enter 5 elements array: ";
	 for(i=0; i<size; i++)
	 {
		  cin>>arr[i];
	 }
	 cout<<"Enter number of times to right rotate: ";
	 cin>>num;

	 // Actual rotation
	 num = num % size;

	 // Printing array before rotation
	 cout<<"Array before rotation\n"<<endl;
	 printArray(arr);

	 // Rotate array n times
	 for(i=1; i<=num; i++)
	 {
		  rotateByOne(arr);
	 }

	 // Printing array after rotation
	 cout<<"\nArray after rotation\n"<<endl;
	 printArray(arr);

	 return 0;
}


void rotateByOne(int arr[])
{
	 int i, last;

	 // Storing last element of array
    last = arr[size - 1];

    for(i=size-1; i>0; i--)
	 {
        // Moving each array element to its right
		  arr[i] = arr[i - 1];
    }

   // Copying last element of array to first
	 arr[0] = last;
}


//Printing the given array
void printArray(int arr[])
{
    int i;

    for(i=0; i<size; i++)
	 {
        cout<<arr[i]<<"\t";
	 }
}