January 10, 2018
Introduction
It is hard to manage myself to learn disjoint set. I did read the tutorial over 6 months ago, but I failed to perform in Leetcode 684: redundant connection on January 8, 2018. One of drills I came out is to work on hard level algorithm on hackerearth this time, so I learn more through the practice.
Plan to work on the algorithm called Monk missing home.
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