LeetCode 947. Most Stones Removed with Same Row or Column
Description https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/ On a 2D plane, we place stones at some integer coordinate points. Each coordinate point may have at…
Category: Union Find
LeetCode 547. Friend Circles
Description https://leetcode.com/problems/friend-circles/description/ There are N students in a class. Some of them are friends, while some are not. Their friendship is transitive…