$ sudo apt-get update
$ sudo apt-get install codeblocks-contrib 

codeblocks-contrib is installed in your system.

Make ensure the codeblocks-contrib package were installed using the commands given below,

$ sudo dpkg-query -l | grep codeblocks-contrib *

You will get with codeblocks-contrib package name, version, architecture and description in a table

codeblocks-contrib package basic information: