Reserve in vectors

if we reserve vector for 100 spaces and then we want to add element after 100th place then what will happen? will size of vector will be double?

Yeah
You can go through documentation for more if required

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.