Can i copy 'vector' elements in 'set' using the copy algorithm?

Question

I am getting the run time error in following code. Please let me know can i copy vector elements in set?

#include <iostream>
#include <vector>
#include <set>
using namespace std;
int main()
{
    vector<int> v;
    set<int> kk;
    set<int>::iterator itr;
    for (int i = 0; i < 6; i++)
    {
        v.push_back(i * 2);
    }
    copy(v.begin(), v.end(), inserter(kk, itr));
}

Answer 1

You are not initialising itr:

set<int>::iterator itr = kk.begin();

Or remove itr entirely:

copy(v.begin(), v.end(), inserter(kk, kk.begin()));

In this instance, you could simply initialise kk thus (but if you want to add to kk follow the line above):

set<int> kk(v.begin(), v.end());