Arrays mit vector

#include <iostream>
#include <vector>
 
using namespace std;
 
int main() {
    vector<int> v;
    v.push_back(3); // [3]
    v.push_back(2); // [3,2]
    v.push_back(5); // [3,2,5]
    for (int i=0; i<v.size(); i++) {
        cout << v[i] << ",";
    }
    cout << endl; 
 
    // Ohne Index:
    for (auto x : v) {
        cout << x << '\n';
    }    
}