skycore

摘要： 题目描述:(链接)Given a binary tree, return theinordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[1,... 阅读全文

摘要： 题目描述:(链接）Given a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[1... 阅读全文

摘要： 题目解析:(链接)Givennnon-negative integers representing the histogram's bar height where the width of each bar is 1, find the area of largest rectangle in t... 阅读全文

摘要： 题目描述:(链接)Given a non-negative integernum, repeatedly add all its digits until the result has only one digit.For example:Givennum = 38, the process is ... 阅读全文

摘要： 题目描述:(链接）Given a string containing just the characters'('and')', find the length of the longest valid (well-formed) parentheses substring.For"(()", th... 阅读全文

摘要： matplotlib是python最著名的绘图库，它提供了一整套和MATLAB类似的绘图函数集。一. 快速绘图1. 使用pyplot模块绘图pyplot模块提供了快速绘制二维图表的API，例子： 1 # -*- coding: utf-8 -*- 2 """ 3 绘制简单的曲线。 4 """ 5 i... 阅读全文

摘要： 题目描述:(链接)Given an absolute path for a file (Unix-style), simplify it.For example,path="/home/", =>"/home"path="/a/./b/../../c/", =>"/c"click to show c... 阅读全文

摘要： 题目描述:(链接)Given two stringssandt, determine if they are isomorphic.Two strings are isomorphic if the characters inscan be replaced to gett.All occurren... 阅读全文

摘要： 原文地址: http://www.cnblogs.com/archimedes/p/mapreduce-principle.html简单解释 MapReduce 算法一个有趣的例子你想数出一摞牌中有多少张黑桃。直观方式是一张一张检查并且数出有多少张是黑桃？MapReduce方法则是：给在座的所有玩家... 阅读全文

摘要： 题目描述:(链接）Given an integer, convert it to a roman numeral.Input is guaranteed to be within the range from 1 to 3999.解题思路： 1 class Solution { 2 public: ... 阅读全文