35. Find the Sum of All Numbers in Vector C++

#include <iostream>
#include <vector>
#include <numeric>

int main()
{
    using namespace std;

    int vector_size;
    cin >> vector_size;

    vector<int> v;
    for (int i = 0; i < vector_size; ++i)
    {
        int n;
        cin >> n;
        v.push_back(n);
    }

    int sum = accumulate(v.begin(), v.end(), 0);

    cout << sum << endl;

    return 0;
}