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题目链接 ： https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=4762 Time limit : 3000 ms You are in charge of preparing the conference hall for the closing ceremony of ACM ICPC. You had hired a perfectionist sentimental room designer to design an elegant decoration for the old hall. The ceremony is going to start in a few hours and the designer has just informed you of the completion of the decoration. When you reach the conference hall, you confront a strange circuit on the wall. The designer starts explaining the meanings of life and ACM ICPC

lambda表达式： 一个lambda表达表示一个可调用的代码单元，我们可以将其理解为一个未命名的内联函数。 lambda 表达式： Lambda表达式完整的声明格式如下： [ capture list ] ( params list ) mutable exception - > return type { function body } 各项具体含义如下： capture list：捕获外部变量列表 params list：形参列表 mutable 指示符：用来说用是否可以修改捕获的变量 exception：异常设定 return type：返回类型 function body：函数体 ps: (mutable):在C++中，mutable也是为了突破const的限制而设置的。被mutable修饰的变量，将永远处于可变的状态，即使在一个const函数中。 我们可以忽略参数列表和返回类型，但必须永远包含捕获列表和函数体： # include <iostream> using namespace std ; int main ( void ) { auto f = [ ] { return 42 ; } ; auto g = [ ] { int a = 1 ; a ++ ; return a ; } ; cout << f ( ) << endl ; //42 cout << g

I'm using jQuery to edit the background-color of table cells. My code is as follows (the each cell has numbers in the format "x/y" so I mine them out at the start): $(document).ready(function(){ $("#overview td").click(function(event){ var content = $(this).html(); var vals = content.split("/"); var ratio = vals[0]/vals[1]; alert(ratio); var red; var green; if(vals[1] == 0){ $(this).css('background-color', '#00FF00'); } else{ if(ratio > 0.5){ red = 255; green = parseInt(-2*255*ratio+(2*255)); } else{ green = 255; red = parseInt(2*255*ratio); } var rgbColor = 'rgb(' + red + ',' + green+ ', 0)';

I have very many small jQuery Cycle slideshow divs (containers) on a one-page website like <div class="foo bar" data-value="1000"> // data-value varies on each container <img src="directory/img_0.jpg" alt="img 0" /> <img src="directory/img_1.jpg" alt="img 1" /> <img src="directory/img_2.jpg" alt="img 2" /> </div> and want to cycle them all - with each slideshow div having a different data-value - without hard coding/repeating $(document).ready(function() { $('.foo.bar').cycle({ speed: 300, timeout: 6000, delay: $('.foo.bar').data('value') }); }); for all occurences of such slideshow div. How

I'm trying to do a sum of numbers inside div's, so, I did: $(document).ready(function() { var numbers, sumNumbers; $(".item").each(function() { numbers = $(this).children().text(); numbers = +numbers; sumNumbers += numbers; }); console.log(sumNumbers); }); <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="item"> <span class="itemNum">0</span> </div> <div class="item"> <span class="itemNum">2</span> </div> <div class="item"> <span class="itemNum">1</span> </div> But, same converting the numbers from text to number with +numbers is returned NaN,

I'm iterating over an array of items in Meteor using Blaze using the #each iterator, and I want to insert an HTML element after each nth (10th) item. I figured I could use @index to access what index of the array I'm at, but don't really know how to insert another element every 10th element. {{#each getArray}} <div class="item" data-value="{{someHelper @index}}">{{this}}</div> {{/each}} Based on your comment, it seems like you'd want to make a custom helper that returns whether or not you should have an element in the DOM: {{#each getArray}} <div class="item" data-value="{{someHelper @index}}"

Pennsylvania State University College of Information Sciences and Technology DS 310 Midterm Exam Instructions 1. There are 4 problems each of which is worth 25 points. 2. Please consult the instructor if you have difficulty understanding any of the problems. 1. (25 pts.) Consider a M-class pattern classification problem in which each pattern X to be classified belongs to exactly one of M mutually exclusive classes ω1 ··· ωM. Suppose that X is represented using a vector of N binary features X = [x1, x2 ··· xN ]. Let pji = P(xi = 1|ωj ). Assume that the features are independent given the class

I'm trying to make all array indexes lowercase strings, but it's not working. I looked at other answers on here and tried their solutions like using toString() before adding toLowerCase but it doesn't work, which is weird. I created a jsfiddle of the problem here . JS: $(colorArr).each(function(i, item) // loop thru each of elements in colorArr and make lowercase + trim { if(colorArr[i] !== undefined) // check if colorArr index undefined { colorArr[i].toString().toLowerCase().trim(); // FIX HERE /* TRIED - DIDN'T WORK! colorArr[i].toLowerCase().trim(); */ } }); i updated your fiddle https:/