q198418213

#include <iostream>
#include <stdlib.h>
#include <list>
#include <time.h>

using namespace std;

int main()
{
    srand(time(NULL));

    int n = rand()%10 + 10;
    cout << n << endl;

    list<int> ls;
    for (int i = 0; i < n; i++)
    {
        ls.push_back(rand() % 1001);
        cout << ls.back() << " ";
    }

    ls.remove_if([](int n){
        return n > 500;
    });

    cout << endl << ls.size() << endl;
    for (list<int>::iterator it = ls.begin(); it != ls.end(); it++)
        cout << *it << " ";

    return 0;
}