Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example, Given [100, 4, 200, 1, 3, 2], The longest consecutive elements sequence is [1, 2, 3, 4]. Return its length: 4. Your algorithm should run in O(n) complexity. 分析 给定...
This question is the extension of the version one. The longest consecutive Sequence could be found in "Parent->Children" or "Children -> Parent -> Children". The first situation is the same as previous one. The second is more complicated. We need to consider the directions, increasing and ...
*@returnthe length of the longest consecutive sequence path*/privateclassResultType {intmax;intup;intdown;publicResultType(intmax,intup,intdown) {this.max =max;this.up =up;this.down =down; } }publicintlongestConsecutive3(MultiTreeNode root) {//Write your code herereturnfindLongestConsecutive(r...