11. Compare Arrays C++

#include <iostream>
#include <vector>
int main()
{
    using namespace std;

    int lenght;
    cin >> lenght;
    vector<int> arr1;
    for (int i = 0; i < lenght; ++i)
    {
        int n;
        cin >> n;
        arr1.push_back(n);
    }

    vector<int> arr2;
    cin >> lenght;
    for (int i = 0; i < lenght; ++i)
    {
        int n;
        cin >> n;
        arr2.push_back(n);
    }

    if (arr1 == arr2)
        cout << "equal";
    else
        cout << "not equal";

    return 0;
}