Delete Elements from C++ Vectors

#include <iostream>

#include <vector>

using namespace std;

int main() {

  vector<int> prime_numbers{2, 3, 5, 7};

  

  // initial vector

  cout << "Initial Vector: ";

  for (int i : prime_numbers) {

    cout << i << " ";

  }

  // remove the last element

  prime_numbers.pop_back();

  // final vector

  cout << "\nUpdated Vector: ";

  for (int i : prime_numbers) {

    cout << i << " ";

  }

  

  return 0;

}