DZ_14_(29.04.25)

main.cpp

#include <iostream>
using namespace std;

void delete_element_at_the_end_of_array(int** ar, int* size) {
	int* temp = new int[*size - 1];
	for (int i = 0; i < *size - 1; i++)
		temp[i] = (*ar)[i];
	delete[] *ar;
	*ar = temp;
	--(*size);
}

void add_element_at_the_beginning_of_array(int** arr, int* sizer, int num) {
	int* temp = new int[*sizer + 1];
	temp[0] = num;
	for (int i = 0; i < *sizer; i++)
		temp[i + 1] = (*arr)[i];
	delete[] *arr;
	*arr = temp;
	++(*sizer);
}

int main()
{
	cout << "#1\n";
	int size = 5;
	int* ar = new int[size] {1, 2, 3, 4, 5};

	for (int i = 0; i < size; i++)
		cout << ar[i] << " ";

	delete_element_at_the_end_of_array(&ar, &size);
	cout << "\n";
	for (int i = 0; i < size; i++)
		cout << ar[i] << " ";

	delete[] ar;


	cout << "\n\n#2\n";

	int sizer = 5;
	int* arr = new int[sizer] {1, 2, 3, 4, 5};

	for (int i = 0; i < sizer; i++)
		cout << arr[i] << " ";

	cout << "\n";

	int num;
	cout << "Enter a number to add at the beginning of the array: ";
	cin >> num;

	add_element_at_the_beginning_of_array(&arr, &sizer, num);
	cout << "\n";
	for (int i = 0; i < sizer; i++)
		cout << arr[i] << " ";

	delete[] arr;
}