What should I practice for ICPC India regionals and Asia-West Levels $$$?$$$

• Should I practice random problems on cf using rating filter.
• Should I practice Indian ICPC past archives. (The problem with them is that many of them are hosted on codedrills which doesn't work / doesn't support unsolving). Can anyone please share some good Indian ICPC archive sources which supports upsolving and is updated?
• Random / some particular (like OCPC) problems from gym.
• Something else