Given a binary tree rooted at root , the depth of each node is the shortest distance to the root. A node isdeepestif it has the largest depth possible amongany node in theentire tree. The subtree of ...
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Given a rooted binary tree, return the lowest common ancestor of its deepest leaves. Recall that: The node of a binary tree is a leaf ...
/strengthen/LeetCode➤原文地址：https://www.cnblogs.com/streng ...
Return the lexicographically smallest subsequence of s that contains all the distinct characters of s exactly once. Note: This question ...
Given two non-empty binary trees s and t, check whether tree t has exactly the same structure and node values with a subtree of s. A subtree of s ...
An undirected, connected graph of N nodes (labeled `0, 1, 2, ..., N-1`) is given as `graph`. graph.length = N, and j != i is in the list graph[i ...
We are given a binary tree (with root node `root`), a `target` node, and an integer value `K`. Return a list of the values of all nodes that have ...
Given a Binary Search Tree (BST) with the root node root, return the minimum difference between the values of any two different nodes in the tree. ...
An image is represented by a binary matrix with 0 as a white pixel and 1 as a black pixel. The bl ...
