how to add clock in cpp?

Question

when i execute counting its just in a second give me the output...
i want to perform this by adding seconds time interval or 2 sec time between counting like 0 and 1 has 2sec interval...
dorry for bad English

Answer 1

Might be helpful..
https://code.sololearn.com/cqL4uaoU0tky/?ref=app

Answer 2

its not an appropriate answer... i want to use time limit as a space