D - 粉碎叛乱 Time Limit:1000MS Memory Limit:32768KB 64bit IO Format:%I64d & %I64u Submit Status Practice HDU 1528 Description Adam and Eve play a card game using a regular deck of 52 cards. The rules are simple. The players sit on opposite sides…
BEIJING—Chinese government officials destroyed more than six tons of ivory that had been illegally smuggled into the country, signaling that Beijing is willing to play a greater role in protecting dwindling elephant populations. smuggle:走私 dwin…
函数式编程其实就是按照数学上的函数运算思想来实现计算机上的运算.虽然我们不需要深入了解数学函数的知识,但应该清楚函数式编程的基础是来自于数学. 例如数学函数\(f(x) = x^2+x\),并没有指定返回值的类型,在数学函数中并不需要关心数值类型和返回值.F#代码为let f x = x ** 2.0 + x,F#代码和数学函数非常类似,其实这就是函数式编程的思想:只考虑用什么进行计算以及计算的结果(或者叫"输入和输出"),并不考虑怎样计算. 其实,你可以把任何程序看成是一系列函数,输…
原文链接:https://swlaschin.gitbooks.io/fsharpforfunandprofit/content/posts/fvsc-sum-of-squares.html Comparing F# with C#: A simple sumF# PK C#:简单的求和 To see what some real F# code looks like, let's start with a simple problem: "sum the squares from 1 to N…
原文地址:https://swlaschin.gitbooks.io/fsharpforfunandprofit/content/learning-fsharp/ Learning F#Functional programming languages need a different approach学习F#函数式编程语言需要不同的学习方法 Functional languages are very different from standard imperative languages, an…
原文地址:http://fsharpforfunandprofit.com/why-use-fsharp/ Why use F#?Why you should consider using F# for your next project 为什么要用F#?为什么你应该考虑在下一个项目使用F# Although F# is great for specialist areas such as scientific or data analysis, it is also an excellent…
Problem F: Tanks a Lot Imagine you have a car with a very large gas tank - large enough to hold whatever amount you need. You are traveling on a circular route on which there are a number of gas stations. The total gas in all the stations is exactly…
今天用selenium2遇到问题 org.openqa.selenium.WebDriverException: f.QueryInterface is not a function 查了好久最后终于知道问题所在了. 网上有好多中解释.但是归根结底其实就是url写的格式不对. url必须是完整的,比如http://www.example.com.…
F. Bear and Fair Set time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Limak is a grizzly bear. He is big and dreadful. You were chilling in the forest when you suddenly met him. It's very u…