2_b

#include <bits/stdc++.h>
using namespace std;
int main()
{
    vector<int> v{1,2,3,4,5};
    vector<int>::iterator it = std::find(v.begin(),v.end(),4);
    v.insert(it,7);
    it = v.begin()+2;
    *it =11;
    vector<int> x;
    std::copy_if(v.begin(),v.end(),back_inserter(x),[](int a){return a%2 ==1;});
    for(auto a:x){
        cout<<a<<" ";
    }
    return 0;
}