How to organize a subdomain?

Question

Search Engine Optimization

It is possible to make the site subdomains by city. Will Yandex and Google glue subdomains together if the content (except for contacts) is exactly the same?

Answer 1

Glue. Just list all the contacts in the corresponding section on the main domain (or you can dynamically form it based on geoip), of course, you shouldn’t do any subdomains: this is the last decade.
To make sure, look at Walmart, Citylink, MVideo and any other large online stores.

Answer 2

glue,
well, or a filter