use functions instead of comments

[MaKsY2]

Instead:

int main() {
  std::cout<<1;
}
// int main() {
//   std::cout<<2;
// }
// int main() {
//   std::cout<<3;
// }

Use:

int main() {
  A1();
}
void A1() {
  std::cout<<1;
}
void A2() {
  std::cout<<2;
}
void A3() {
  std::cout<<3;
}

[wak3upalex]

Thanks for the advice. I will fix my structure of code in the next commits