Brief thing that's probably all wrong. Guide me, wise one!

thingythingthing

#include <iostream>
#include <vector>

using namespace std;

int main() {
    vector <int> vec;
    for (int i = 10; i; --i) {
        int x;
        cin >> x;
        vec.push_back(x);
    }
    for (int i = 0; 10 - i; ++i) {
        cout << vec[i] << '\n';
    }
    return 0;
}