Problem no 7: Cyclically rotate the array by one.

 

Cyclically rotate an array by one

Basic Accuracy: 77.14% Submissions: 4605 Points: 1

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Given an array, rotate the array by one position in clock-wise direction.
 

Example 1:

Input:
N = 5
A[] = {1, 2, 3, 4, 5}
Output:
5 1 2 3 4

 

Example 2:

Input:
N = 8
A[] = {9, 8, 7, 6, 4, 2, 1, 3}
Output:
3 9 8 7 6 4 2 1

Answer:

void rotate(int arr[], int n)
{
   int num=arr[n-1];
   for(int i=n-1;i>0;i--)
   {
       arr[i]=arr[i-1];
   }
   arr[0]=num;
   
   
   for(int i=0;i<n;i++)
   {
       cout<<arr[i]<<" ";
   }
}