C Program to Right Rotate Array Elements

C program to right rotate an array; Through this tutorial, we will learn how to right rotate an array using standard method and function in c programs.

Programs to Right Rotate Array Elements in C

Checkout the following program to right rotate an array using standard method and function in c:

• C Program to Right Rotate Array Elements using Standard Method
• C Program to Right Rotate Array Elements using Function

C Program to Right Rotate Array Elements using Standard Method

#include <stdio.h>

int main()
{
    int a[10000],i,n,j,k,temp;

    printf("Enter size of the  array : ");
    scanf("%d", &n);
    printf("Enter elements in array : ");
    for(i=0; i<n; i++)
    {
        scanf("%d",&a[i]);
    }
    printf("how many times right rotate : ");
    scanf("%d", &k);

    for(i=0; i<k; i++)
    {
        temp=a[n-1];
        for(j=n-1; j>0; j--)
        {
           a[j]=a[j-1];
		}

         a[j]=temp;


    }
    printf("\narray elements after right rotate  : ");

    for(i=0; i<n; i++)
    {
       printf("%d ",a[i]);
    }

 }

The output of the above c program; as follows:

Enter size of the  array : 5
Enter elements in array : 1 2 3 4 5
how many times right rotate : 2
array elements after right rotate  : 4 5 1 2 3 

C Program to Right Rotate Array Elements using Function

#include <stdio.h>

int rightrotate(int *a,int n,int k)
{
    int i,j,temp;
    for(i=0; i<k; i++)
    {
        temp=a[n-1];
        for(j=n-1; j>0; j--)
        {
           a[j]=a[j-1];
		}

         a[j]=temp;
    }


 }
 print(int *a,int n)
{

    int i;
    for(i=0; i<n; i++)
    {
       printf("%d ",a[i]);
    }


 }


int main()
{
    int a[10000],i,n,j,k,temp;

    printf("Enter size of the  array : ");
    scanf("%d", &n);
    printf("Enter elements in array : ");
    for(i=0; i<n; i++)
    {
        scanf("%d",&a[i]);
    }
    printf("how many times right rotate : ");

	scanf("%d", &k);

    rightrotate(a,n,k);

    printf("\narray elements after right rotate  : ");

    print(a,n);



}

The output of the above c program; as follows:

Enter size of the  array : 5
Enter elements in array : 1 2 3 4 5
how many times right rotate : 4
array elements after right rotate  : 2 3 4 5 1 

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