I'm currently midst my interview preparation targetting few of the top tech companies. Before I dive deeper into the stratergy that I've chalked out for myself, here's a bit about my background:

1. Graduated from a tier-3 college in 2017, and worked for a small tech startup for about a year and a half.
2. Currently working with a mid sized organization for more than 1.5 years and have a little over 3 years of industry experience.
3. Current TC ~25 LPA.

Stratergy
I've divided my preparation into 4 parts:

1. DS and Algorithms (Further divided into smaller topics)
   Resources: Leetcode, Discussions with friends about random problems.
2. System Design (LLD, and HLD)
   Resources: Youtube, Paid courses, System Design Primer.
3. Language Specific (C++, with OOPs concepts, multi-threading, custom allocators, etc.)
4. Mock interviews, warm-up interviews with few startups.
   Resources: Interview portals, Interviews

Now coming to my question, I'm already aware of the resources aprt from the ones required for language specific questions. I know, there are folks who've cleared FAANG with my level of experience without having to go much deeper into language specifics. However, there's been a few interviews where the questions have been very language specific and I've been stuck. I want to minimise the probability of that happening again and would really appreciate if someone could help me out with the following to ace the C++ interview questions:

1. Resources to follow.
2. Topics to cover.
3. Planning/ timeline (I'm looking to give major interviews within 2-3 months).

Cheers!