Aside from the two-pointer technique demonstrated in my previous post, I have been grokking another popular algorithmic mental model: the sliding window.

If you have never heard of the sliding-window technique, I strongly recommend watching this video tutorial before diving into the example below. Even if you don’t have 36 minutes to spare, be sure to watch the first 8 minutes, which contain multiple well-executed animations.

What is the sliding window technique?

As its name suggests, this technique involves taking a subset of data from a given array or string, expanding or shrinking that subset to satisfy certain conditions, hence the sliding effect.

#algorithms #javascript #engineering #software-development #coding