I need some help

Question

Im making a response bot and to make it seem more "real" im looking to add a function to make a response take a few seconds. but none are working to well.
https://code.sololearn.com/cYDyUQoi8MZe/#cpp

this code isn't meant to run on Sololearn by the way.
im running it on http://cpp.sh/

Answer 1

Because sololearn app send the code to a server that run it and once has finished sends the results back