js uppercase first letter const str = `abc`; str.slice(0, 1).toUpperCase(); // "A" str.slice(1).toLowerCase(); // "bc" // js uppercase first letter // capital / capitalization const log = console.log; const AutoUpperFirstIndexLetters =…

js uppercase the first letter of string js String.toUpperCase `-webkit-border-image`.split(`-`).filter(i => i !== "").reduce((acc, i) => acc += i) // "webkitborderimage" `-webkit-border-image`.split(`-`).filter(i => i !== &quo…

链接:http://codeforces.com/contest/437/problem/A A. The Child and Homework time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Once upon a time a child got a test consisting of multiple-choice qu…

B. Fox And Two Dots 题目连接: http://codeforces.com/contest/510/problem/B Description Fox Ciel is playing a mobile puzzle game called "Two Dots". The basic levels are played on a board of size n × m cells, like this: Each cell contains a dot that ha…

D. Tanya and Password Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/508/problem/D Description While dad was at work, a little girl Tanya decided to play with dad's password to his secret database. Dad's password is a stri…

B. Fox And Two Dots time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Fox Ciel is playing a mobile puzzle game called "Two Dots". The basic levels are played on a board of size n × m ce…

Fox And Two Dots time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Fox Ciel is playing a mobile puzzle game called "Two Dots". The basic levels are played on a board of size n × m cells…

统一过程建模语言UML 统一过程建模语言UML是一种标准的可视化建模语言,使用在:  业务建模和类似的过程 居于软件系统的分析.设计.和实现 UML 是一门通用语言,提供给业务分析员,软件架构师和开发人员来描述.说明.设计现有的文档或者新的业务处理,软件系统的结构和行为的构件. UML 可以广泛运用到多种应用领域(比如:银行,金融,互联网,航空,健康服务等), UML 被用于各种对象和软件开放方法的组件以及各类实现平台(如J2EE, .NET). UML 是一种标准化建模语言,而非软件开放过程.…

A. The Child and Homework time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Once upon a time a child got a test consisting of multiple-choice questions as homework. A multiple-choice question…

Description While dad was at work, a little girl Tanya decided to play with dad characters. She has written all the possible n three-letter continuous substrings of the password on pieces of paper, one for each piece of paper, and threw the password…