10_6.cpp

#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;


int main()
{
    vector<int> vec{1,2,3,4,5,6,7,8,9};

    fill_n(vec.begin(), vec.size(), 0);

    for(auto & it :vec)
        cout << it << " ";

    cout << endl;
    return 0;
}