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This pattern is useful when dealing with interval questions. A lot of the questions will require us to merge overlapping intervals in a given...
This is quite a nifty pattern to apply to linked lists (also arrays and other sequences). Also known as: Hare and Tortoise algorithm. Floyd's...
The two pointer approach is useful when we deal with sorted arrays or linked lists where we need to find a set of elements that fulfil certain...
RE: Technical Interview Questions Let's get real here. I have struggled with motivation since last June (2020). I had weeks where I had Arnold...