silentteller

摘要： 题目： Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2] 阅读全文

摘要： 题目： Given a 2D board and a word, find if the word exists in the grid. The word can be constructed from letters of sequentially adjacent cell, where "a 阅读全文

摘要： 题目： Given an integer array with no duplicates. A maximum tree building on this array is defined as follow: Construct the maximum tree by the given arr 阅读全文

摘要： 题目： Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You m 阅读全文

摘要： 题目： Given a non-empty special binary tree consisting of nodes with the non-negative value, where each node in this tree has exactly two or zero sub-no 阅读全文

摘要： 题目： Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level). For example:Given binary tre 阅读全文

摘要： 题目： Given a string of numbers and operators, return all possible results from computing all the different possible ways to group numbers and operators 阅读全文

摘要： 原始数据如下。 比如我想查看id等于11396的数据。 查看时间time小于25320的数据。 查看time小于25320且大于等于25270的数据 可以根据筛选条件查看某几列 注意多个条件要加括号后在&或|。 阅读全文

摘要： 题目： Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Exam 阅读全文

摘要： 题目： Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as: a binary tree in which the 阅读全文