https://leetcode.com/problems/check-completeness-of-a-binary-tree/ https://leetcode.com/problems/check-completeness-of-a-binary-tree/discuss/205682/JavaC%2B%2BPython-BFS-Level-Order-Traversal https://leetcode.com/problems/check-completeness-of-a-binary-tree/discuss/205768/Java-easy-Level-Order...
Code link:https://leetcode.com/problems/check-completeness-of-a-binary-tree/ Constraint: In a complete binary tree, every level, except possibly the last, is completely filled, and all nodes in the last level are as far left as possible. It can have between 1 and 2h nodes inclusive at ...
LeetCode - 146 LRU Cache (C++) (video) CPU cache: MIT 6.004 L15: The Memory Hierarchy (video) MIT 6.004 L16: Cache Issues (video) Processes and Threads Computer Science 162 - Operating Systems (25 videos): for processes and threads see videos 1-11 Operating Systems and System Programmi...
Given a binary string s and an integer k. Return True if every binary code of length k is a substring of s. Otherwise, return False. Example 1: Input: s = "00110110", k = 2 Output: true Explanation: The binary codes of length 2 are "00", "01", "10" and "11". They can b...
From: https://leetcode.com/problems/check-completeness-of-a-binary-tree/discuss/205682/JavaC%2B%2BPython-BFS-Solution-and-DFS-Soluiton Use BFS to do a level order traversal, add childrens to the bfs queue, until we met the first empty node. ...
* TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */classSolution{public:boolisCompleteTree(TreeNode* root){if(root ==NULL) {returntrue; }returnSequencetraversal(root); }private:boolSequencetraversal(TreeNode* root){ ...