// Chapter 17, drill

#include <iostream>
#include <vector>
using namespace std;

// 4
void print_array10(ostream& os, int* a) {
	for (int i = 0; i < 10; ++i)
		os << a[i] << "\n";
}

// 7
void print_array(ostream& os, int* a, int n) {
	for (int i = 0; i < n; ++i)
		os << a[i] << "\n";
}

// 10
void print_vector(ostream& os, vector<int> v) {
	for (int i = 0; i < v.size(); ++i)
		os << v[i] << "\n";
}

int main() {
	// 1
	int* ip = new int[10];

	// 2
	cout << "*** 2 ***\n";
	for (int i = 0; i < 10; ++i)
		cout << ip[i] << "\n";

	// 3
	delete[] ip;

	// 5
	cout << "*** 5 ***\n";
	int* ip2 = new int[10];
	for (int i = 0; i < 10; ++i)
		ip2[i] = 100 + i;
	print_array10(cout, ip2);
	delete[] ip2;

	// 6
	cout << "*** 6 ***\n";
	int* ip3 = new int[11];
	for (int i = 0; i < 11; ++i)
		ip3[i] = 100 + i;
	print_array10(cout, ip3);
	cout << ip3[10] << "\n";
	delete[] ip3;

	// 8
	cout << "*** 8 ***\n";
	int* ip4 = new int[20];
	for (int i = 0; i < 20; ++i)
		ip4[i] = 100 + i;
	print_array(cout, ip4, 20);
	delete[] ip4;

	// 10
	cout << "*** 10 ***\n";
	vector<int> v;
	for (int i = 0; i < 10; ++i)
		v.push_back(100 + i);
	print_vector(cout, v);

	cout << "\n";
	vector<int> v2;
	for (int i = 0; i < 11; ++i)
		v2.push_back(100 + i);
	print_vector(cout, v2);

	cout << "\n";
	vector<int> v3;
	for (int i = 0; i < 20; ++i)
		v3.push_back(100 + i);
	print_vector(cout, v3);

	// second part
	// 1
	int i1 = 7;
	int* p1 = &i1;

	// 2
	cout << "*** 2 ***\n";
	cout << "p1: " << p1 << "\n";
	cout << "*p1: " << *p1 << "\n";

	// 3
	int* p2 = new int[7];
	for (int i = 0; i < 7; ++i)
		p2[i] = pow(2, i);

	// 4
	cout << "*** 4 ***\n";
	cout << "p2: " << p2 << "\n";
	cout << "print_array(cout,p2,7):\n";
	print_array(cout, p2, 7);

	// 5
	int* p3 = p2;

	// 6
	p2 = p1;

	// 7
	p2 = p3;

	// 8
	cout << "part 8 output\n";
	cout << "p1: " << p1 << "\n";
	cout << "*p1: " << *p1 << "\n";
	cout << "p2: " << p2 << "\n";
	cout << "*p2: " << *p2 << "\n";

	// 9
	delete[] p2;
	p3 = 0;

	// 10
	p1 = new int[10];
	int pow2 = 1;
	for (int i = 0; i < 10; ++i)
		p1[i] = pow2 *= 2;

	// 11
	p2 = new int[10];

	// 12
	cout << "part 12:\n";
	for (int i = 0; i < 10; ++i)
		p2[i] = p1[i];
	print_array(cout, p2, 10);

	// 13
	cout << "part 13:\n";
	vector<int> vec1;
	for (int i = 0; i < 10; ++i)
		vec1.push_back(pow(2, i));
	vector<int> vec2;
	for (int i = 0; i < vec1.size(); ++i)
		vec2.push_back(vec1[i]);
	print_vector(cout, vec2);
}