You need to get advanced level tactics like one of my past coworkers. He told me he would purposefully go down the wrong path with a problem - to only later have "divine inspiration" just before the interviewer would interrupt him and try to give him a hint... He would raise his hand and exclaim, "But, maybe!" And then promptly explain and solve the problem.
It was at this point that I realized I have no chance of getting into FAANG when I'm playing low-level tactics like just trying to just solve two medium problems in <40 minutes with the most optimal answer. :( (Or 1 hard problem in 30-35 minutes)
