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#include <iostream>

using std::cin;
using std::cout;
using std::endl;

#define STUDENT 10
#define MIN_RAND 1
#define MAX_RAND 100


class QUEUE {

		int max_size = 5;//STUDENT*5 + 50;
		int start = 0, size = 0;
		int temp, *arr;

	public:
		QUEUE() {
			cout<<"Queue was creating ... \n";
			arr = new int [max_size];
		}

		~QUEUE() {
			cout<<"queue was deleted ..." ;
			delete[] arr;
		}

		void rand_creator_all () {

			for (int i=0; i<max_size; i++) {

				//cout<<"start = "<<start<<" ends =  "<<endl;

				temp = rand() % MAX_RAND + MIN_RAND;
				set_element(temp);

				//cout<<"start = "<<start<<" ends =  "<<endl;
			}
		}
		void set_element(int element) {
			int i = (start+size) % max_size;
			arr[i]=element;
			size++;

			//cout<<"start = "<<start<<" ends =  "<<endl;

		}

		void set_elements() {
			int num, element;
			cout<<"Enter amount elements ";
			cin >> num;
			if(num>max_size) {
				cout<< "bigger for max size queue\n";
			} else {
				for(int i=0; i<num; i++) {
					cout << "Enter element: ";
					cin >> element;

					set_element(element);
				}
			}

		}

		void get_first() {
			size--;
			int answer = arr[start];
			if (size) 
				start = (start + 1) % max_size;

			cout<<"first element "<<answer<<endl;
			//cout<<"start = "<<start<<" ends =  "<<endl;
		}
		void get_all_elements() {

			// cout<<"start = "<<start<<" endl =  "<<ends;

			while(size) {
				get_first();
			}
			

		}
		void get_info() {
			if(size > 0) {
				cout<< "queue not empty\n";
			} else {
				cout<< "queue is empty\n";
			}

		}

	private:

};

int main() {
	QUEUE Pract2;

	Pract2.get_info();

	cout<<"Generate elements for queue...\n";
	Pract2.rand_creator_all();


	Pract2.get_first();
	Pract2.get_all_elements();


	//Pract2.set_element(10);
	Pract2.set_elements();

	Pract2.get_all_elements();

	return 0;
}