You need to find the largest value in each row of a binary tree. Example: 這道題讓我們找二叉樹每行的最大的結點值,那么實際上最直接的方法就是用層序遍歷,然后在每一層中找到最大值,加入結果res中即可,參見 ...
Given a binary tree, find the leftmost value in the last row of the tree. Example : Example : Note:You may assume the tree i.e., the given root node is notNULL. 這道題讓我們求二叉樹的最左下樹結點的值,也就是最后一行左數第一個值,那么我首 ...
2017-02-16 12:28 4 5679 推薦指數:
You need to find the largest value in each row of a binary tree. Example: 這道題讓我們找二叉樹每行的最大的結點值,那么實際上最直接的方法就是用層序遍歷,然后在每一層中找到最大值,加入結果res中即可,參見 ...
letter at a random position. Find the letter that was a ...
[4,5,6,7,0,1,2]). Find the minimum element. You may assume no ...
to find an index mapping P, from A to B. A mapping P[ ...
Suppose you are at a party with n people (labeled from 0 to n - 1) and among them, there may exis ...
Given a binary tree, return all duplicate subtrees. For each kind of duplicate subtrees, you only need to return the root node of any oneof ...
the sum of the numbers to the left of the index is equal ...
Given a non-empty binary search tree and a target value, find the value in the BST that is closest to the target. Note: Given target value ...