Vector declaration

How to define 2D vector and take input to it

vector v[100];

no of rows = 100 each having size zero. push elements as much as you want in every row .

e.g.
v[i].push_back(0);

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.