Given a binary tree, find the leftmost value in the last row of the tree. Example 1: Input: 2 / \ 1 3 Output: 1 Example 2: Input: 1 / \ 2 3 / / \ 4 5 6 / 7 Output: 7 Note: You may assume the tree (i.e., the given root node) is not NULL. -------------…
In a binary tree, the root node is at depth 0, and children of each depth knode are at depth k+1. Two nodes of a binary tree are cousins if they have the same depth, but have different parents. We are given the root of a binary tree with unique value…
leetcode算法: Find Bottom Left Tree ValueGiven a binary tree, find the leftmost value in the last row of the tree.Example 1:Input: 2 / \ 1 3Output:1Example 2: Input: 1 / \ 2 3 / / \ 4 5 6 / 7Output:7Note: You may assume the tree (i.e., the given root n…
lc 513 Find Bottom Left Tree Value 513 Find Bottom Left Tree Value Given a binary tree, find the leftmost value in the last row of the tree. Example 1: Input: 2 / \ 1 3 Output: 1 Example 2: Input: 1 / \ 2 3 / / \ 4 5 6 / 7 Output: 7 Note: You may ass…
Question 513. Find Bottom Left Tree Value Solution 题目大意: 给一个二叉树,求最底层,最左侧节点的值 思路: 按层遍历二叉树,每一层第一个被访问的节点就是该层最左侧的节点 Java实现: public int findBottomLeftValue(TreeNode root) { Queue<TreeNode> nodeQueue = new LinkedList<>(); nodeQueue.offer(root); // 向…
Find Bottom Left Tree Value: Given a binary tree, find the leftmost value in the last row of the tree. Example 1: Input: 2 / \ 1 3 Output: 1 Example 2: Input: 1 / \ 2 3 / / \ 4 5 6 / 7 Output: 7 class Solution { public: int pivotIndex(vector<int>&am…
