Comment by VanshPatel99

Exactly. I agree with the leetcode part. A lot of problems in the world are composite of simpler smaller problems. Leetcode should teach you the basic patterns and how to combine them to solve real world problems. How will you ever solve a real world problem without knowing a few algorithms beforehand. For example, my brother was talking about how a Roomba would map a room. He was imagining 0 to represent free space and 1 as inaccessible points. This quickly reminded me of Number of Islands problem from leetcode. Yeah, there might be a lot of changes required to that problem but one could simple represent it as two problems.

1. Represent different objects in the room as some form of machine understandable form in a matrix 2. Find the number of Islands or find the Islands themselves.