rotate numbers in array code example
Example: rotate an array right in c
// C program to rotate an array cyclically
#include <stdio.h>
void rightRotateByOne(int arr[], int n) //function for cyclically rotating an array once
{
int x = arr[n-1], i;
for (i = n-1; i > 0; i--)
arr[i] = arr[i-1];
arr[0] = x;
}
int main()
{int t;
scanf("%d",&t);//number of test cases
int p;
for(p=0;p<t;p++){
int n,i,k;
scanf("%d %d",&n,&k); // n--> size of array ; k--> number of rotations
int arr[n];
k=k%n;
for(i=0;i<n;i++){
scanf("%d",&arr[i]);
}
int j;
for(j=0;j<k;j++) //cyclically rotating an array k times
{rightRotateByOne(arr, n);}
for (i = 0; i < n; i++){
printf("%d ", arr[i]);}
printf("\n");}
return 0;
}