leetcode不会-LeetCode_Summary:力扣_总结

leetcode 不会 LeetCode_Summary A; Abc abc abc B： Bcd acd def Since two trees are not on the same root, connect the A to B Then we would have to union them by using union-find. The resulting Set would be since abc-> {bcd, acd, def} The size would get updated as 1 1 1 Abc abc abc 1 1 1 Bcd acd def 1 2 2 2 Abc bcd acd def And abc itself is the father node so the largest set is the set with all books. 431 {1,2,4#2,1,4#3,5#4,1,2#5,3} 1------2 \ | \ | \ ----4 3 | | 5 假设x是要找的节点label, 那么 先判断x是否在father map