tree a7dc3d499b525f799ee158d3dcecf6ac7c094219
parent d10a476fd3f07daa659c50877e72c2a1a8ff69e7
author bluss <bluss@users.noreply.github.com> 1567890966 +0200
committer bluss <bluss@users.noreply.github.com> 1567891181 +0200

FEAT: Improve performance of UnionFind's find_mut

Use an iterative implementation instead of recursive, the performance
difference is rather large, in fact.

Tested using the benchmarks from PR #274