June 1999
Intermediate to advanced
368 pages
8h 21m
English
| Exercise 10.1 | Design and implement a hashing scheme that maps usernames to a set of at least a couple hundred locks. |
| Exercise 10.2 | The messenger doesn't provide any way to view or delete the friends in your friends list, regardless of whether they are logged in. Add code to support this functionality. |
| Exercise 10.3 | Add functionality that invites a third party to an existing chat between two other users. |
| Exercise 10.4 | Our messenger service does not provide “remove user account” functionality. Add code to support this feature. There are at least two approaches you can take. Once logged in, a user could be allowed to remove his own account (but you must figure out a way to keep the user from continuing the current session). Alternately, ... |
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