#include <iostream>
using namespace std;
 
// void rotatearray(int **arr,int l){
//     int *temparr=new int[l];
//     for(int i=0; i<l-1; i++){
//         temparr[i+1]=(*arr)[i];
//     }
//     temparr[0]=(*arr)[l-1];
//     (*arr)=temparr;
// }
 
void rotatearr(int **arr, int l){
    int lastelement=(*arr)[l-1];
    for(int i=l-1; i>=1; i--){
        (*arr)[i]=(*arr)[i-1];
    }
    (*arr)[0]=lastelement;
}
 
int main(){
    int *arr=new int[10]{1,2,3,5,7,8,5,4};
    rotatearr(&arr,8);
    for(int i=0; i<8; i++){
        cout<<arr[i]<<" ";
    }
}
 

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