I'm not entirely sure about this, but it looks more like Counting sort [1], than Pigeonhole sort. [1]: https://en.wikipedia.org/wiki/Counting_sort https://en.w

I'm not entirely sure about this, but it looks more like Counting sort [1], than Pigeonhole sort. [1]: https://en.wikipedia.org/wiki/Counting_sort https://en.wikipedia.org/wiki/Counting_sort