how to remove middle element in vector c++

#include <iostream>
#include <vector>

int main() {
    std::vector<int> vec = {1, 2, 3, 4, 5};
    int middle = vec.size() / 2;
    vec.erase(vec.begin() + middle);
    for (int i : vec) {
        std::cout << i << " ";
    }
    return 0;
}