I have used CodeBlocks compiler for debugging purpose. But you can use any C++ programming language compiler as per your availability.
#include <iostream>
#define size 5 // defining Size of the array
using namespace std;
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";
}
}
I have used CodeBlocks compiler for debugging purpose. But you can use any C++ programming language compiler as per your availability.
Result:
Enter 5 elements array: 1
2
3
4
5
Enter number of times to right rotate: 2
Array before rotation
1 2 3 4 5
Array after rotation
4 5 1 2 3
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