You learn to look after patterns. No different that "grinding" leetcode problems, IMO. If you do enough, you start to see a lot of similar patterns, over and

You learn to look after patterns. No different that "grinding" leetcode problems, IMO. If you do enough, you start to see a lot of similar patterns, over and over. From there, even if you don't truly know what pattern is right, you can at least do some exclusion - like with multiple choice.