C++ · ОСНОВЫ · LESSON 14

Growing list

vector · about 12 minutes

Learning with progressRead the summary for free. To save the work, log in to the account.

STEP 1

How it works.

vector — список, который умеет расти. В <> напиши тип его элементов.

vector<int> nums = {1, 2};

✦ Для vector нужен заголовок <vector>.

STEP 2

Try to understand.

Для vector нужен заголовок <vector>.

vector<int> nums = {1, 2};
cout << nums.size() << endl;

✦ Compare this to the first one. Then do the cool job yourself.

IN-CLASS PRACTICE

Type the code yourself

Manually type the program from the sample. So you'll remember commands and brackets.

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

int main() {
    vector<int> nums = {1, 2};
    cout << nums.size() << endl;
    return 0;
}

Open the editor for class work

HOMEWORK

Solve it yourself

Создай vector<int> nums из чисел 2, 4, 6 и выведи размер через size().

The answer is hidden. Use similar examples from the lesson notes.

Opening up your homework