12. Longest Sequence C++

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

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

    int len, max_len, elem, max_elem;
    len = max_len = 1;
    elem = max_elem = arr[0];
    for (int i = 1; i < lenght; ++i)
    {
        if (arr[i] == elem)
            ++len;
        else
        {
            len = 1;
            elem = arr[i];
        }
        if (len >= max_len)
        {
            max_len = len;
            max_elem = elem;
        }
    }

    for (int i = 0; i < max_len; ++i)
        cout << max_elem << ' ';

    return 0;
}