Welcome

int main() {
  std::vector<int> v = {0, 1, 2, 0, 1, 0, 4};
  std::print("{}\n", v);
  // remove all 0 elements
  auto new_end = std::remove(v.begin(), v.end(), 0);
  v.erase(new_end, v.end());
  std::print("{}\n", v);
}
// [0, 1, 2, 0, 1, 0, 4]
// [1, 2, 1, 4]

int main() {
  std::vector<int> v = {0, 1, 2, 0, 1, 0, 4};
  std::print("{}\n", v);
  // remove all 0 elements

  ________________;
  std::print("{}\n", v);
}
// [0, 1, 2, 0, 1, 0, 4]
// [1, 2, 1, 4]

int main() {
  std::vector<int> v = {0, 1, 2, 0, 1, 0, 4};
  std::print("{}\n", v);
  // remove all 0 elements

  std::erase(v, 0);
  std::print("{}\n", v);
}
// [0, 1, 2, 0, 1, 0, 4]
// [1, 2, 1, 4]