shift array elements to left c++ code example

Example 1: gfg cyclic array rotation

# include <iostream> 
using namespace std; 

void rotate(int arr[], int n) 
{ 
	int last = arr[n - 1], i; 
	for (i = n - 1; i > 0; i--) 
	arr[i] = arr[i - 1]; 
	arr[0] = last; 
} 


int main() 
{ 
	int arr[100], i; 
	int n, turns;

	cin >> n;

	for(i=0;i<n;i++){
		scanf("%d", &arr[i]);
	}
    
	cin >> turns;

	while(turns>=1){
		rotate(arr,n);
		turns--;
	}

	for(i=0;i<n;i++){
		cout << arr[i] << " ";
	}

	return 0; 
}

Example 2: c++ shift array to the right

// Shift array elements to right
	const int SIZE = 9;
	int arr[SIZE]={1,2,3,4,5,6,7,8,9};

	int last = arr[SIZE - 1];		
	for (int i = SIZE - 1; i > 0; i--)	
		arr[i] = arr[i - 1];		
	
	arr[0] = last;

Example 3: shift array elements to left c++

int temp=arr[0];
	/********************************	Method 1
	for (int i = 0; i < SIZE - 1; i++)		
	{
		arr[i] = arr[i + 1];
	}
	arr[SIZE-1]=temp;
	*/
	//									Method 2
	for (int i = 1; i < SIZE - 1; i++)
	{
		arr[i - 1] = arr[i];
	}
	arr[SIZE - 1] = temp;
	for (int i = 0; i < SIZE; i++)
		cout << arr[i] << "\t";
	cout << endl;