vector로 값을 출력하는 두 가지 방법

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

int main() {
    vector<int> vec;
    int n, x;
    cin >> n;
    
    for(int i = 0; i<n; i++){
        cin >> x;
        vec.push_back(x);
    }
    
    vector<int>::iterator p;
    for(p = vec.begin(); p!= vec.end(); p++){
        cout<<*p<<endl;
    }
    cout<<endl;
    for(int i = 0; i<vec.size(); i++){
        cout<<vec.at(i)<<endl;
    }
      
    return 0;
}