Apocalyptica

这个货币膨胀的时代，名义GDP飙升，银行利息跑不赢CPI，持有资金的人焦急地寻找着资金的出口，黄金、股市、期货、房地产等等。十几年来，股票市场、期货市场、黄金市场都历经过大幅波动有的甚至一度处于崩溃边缘，只有房地产信心十足始终如一。去年夏天G20前夕与朋友在西湖边的一番谈论也形成共识：投资房产的唯一不足就是流通性，收益高、风险低，远远好过其它主流投资方式。在传统理财产品之外，支付宝等各种网络金融理财产品纷纷出世以缓和资金的焦急，覆盖最后的一块空缺，同时也赚走蛋糕的余下部分。

题意

Divide two integers without using multiplication, division and mod operator.
If it is overflow, return MAX_INT.

题意

Reverse a singly linked list.

题意

Given two binary trees, write a function to check if they are equal or not.
Two binary trees are considered equal if they are structurally identical and the nodes have the same value.
给定两棵二叉树，需要判断他们是否相等，相等的定义是结构相同且对应的值相等。

题意

Given a digit string, return all possible letter combinations that the number could represent.
A mapping of digit to letters (just like on the telephone buttons) is given below.

题意

Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution.

题意

Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero.
Note: The solution set must not contain duplicate triplets.

JavaScript中的类型

Description

Given a sequence of n integers a1, a2, …, an, a 132 pattern is a subsequence ai, aj, ak such that i < j < k and ai < ak < aj. Design an algorithm that takes a list of n numbers as input and checks whether there is a 132 pattern in the list.
Note: n will be less than 15,000.

题意

Implement pow(x, n).
实现幂乘函数Pow(x,n)。