arr calculation

Searching for the optimal calculation method Finding the best way to calculate arrays is really not going to come out. I have two arrays, respectively: PHP Code $arr 1=array ( array ( ' id ' =>1, ' pos ' =>1 ), array ( ' id ' =>2, ' pos ' =>2 ), array ( ' id ' =>3, ' pos ' =>3 ), array ( ' id ' =>4, ' pos ' =>4 ),

PHP improved calculation of string similarity function Similar_text (), Levenshtein (), Levenshtein Similar_text () Chinese character edition Copy the Code code as follows:Splitting a stringfunction Split_str ($STR) {Preg_match_all ("/./u", $str, $arr);return $arr [0];}Similarity detectionfunction Similar_text_cn ($str 1, $str 2) {$

coupon date, then April 20, 2016- April 20, 2017 (the interest calculation head is not counted, the same as below) for the first full year of interest for the product, the product has a total of 5 interest year.2> years of interest in leap year determinationThe leap year is determined as a standard for whether it crosses February 29 of a leap year in a full interest period. As an example of the products mentioned in the previous paragraph, the Year o

PHP full probability calculation functions (optimized version) are essential for Webgame development. For more information, see. PHP full probability calculation functions (optimized version) are essential for Webgame development. For more information, see. The Code is as follows: $ Setting = array ( // Black Probability 0 => 0.99, // White Probability 1 => 0.01, ); // Requires the GD Library Header (

---restore content starts---Expressway coordinate elevation calculation software descriptionThe highway coordinate elevation calculation software is a very effective procedure which is summed up in many years of construction lofting work. It is a good assistant in the construction of highways and railways, and can help you to complete the calculations that you used to accomplish with great effort and time.

(profit-40) *0.03+20*0.05+10*0.075+10*0.1 A elifprofit andProfit>60: - return(profit-60) *0.015+20*0.03+20*0.05+10*0.075+10*0.1 - elifprofit>100: the return(profit-100) *0.01+40*0.015+20*0.03+20*0.05+10*0.075+10*0.1 - - if __name__=="__main__": -Profit = float (input ("Please enter monthly profit (million):")) + Print(Reward (profit) *10000)Output Result:1 Enter monthly Profit (million):2 13000.002 The second implementation of the Code:1 #Bonus Calculation2 defRewar

This is a practical php date-time operation class, which includes the Gregorian-lunar conversion, converted to Chinese date format, the calculation of the lunar calendar days apart, the lunar calendar year to obtain the lunar calendar days, the number of days to obtain the lunar calendar year, get a leap month, calculate the lunar date and the first day of the first month, calculate 2 Gregorian calendar ( Solar calendar) The number of days between dat

Topic计算数组的小和Java codePackage com.lizhouwei.chapter8;/** * @Description: Calculates the small and * @Author of the array: Lizhouwei * @CreateDate: 2018/5/8 20:29 * @Modify by : * @ModifyDate: */public class chapter8_13 {public int smallsum (int[] arr) {int[] res = new Int[arr.length]; Return MergeSort (arr, 0, arr.length-1, res); } public int mergesort (int[]

. Then merge 'arr1' and 'arr2', Finally, a random one comes out of the merged array. It's easy! A change of mind, the problem will be solved! /***************t1-t2 Random Rounding ***************/ functionGetrandom (t1,t2) {varR = Math.Round (Math.random () * (t2-t1)); returnr+T1; } /***************arr a random item in an array ***************/ functionGetrandomarr (arr) {varindex = Getrandom (0

Originally a foreign source (technicalanalysisengine src 1.25) internal calculation of the EMA is:var copyinputvalues = input. ToList ();for (int i = period; I {var resultvalue = (Copyinputvalues[i]-returnvalues.last ()) * multiplier + returnvalues.last ();Returnvalues.add (Resultvalue);}var result = new Emaresult (){Values = Returnvalues,Startindexoffset = period-1};It is evident that such calculations are inconsistent with our tradition and may not

Copy codeThe Code is as follows:$ Setting = array (// Black Probability0 => 0.99,// White Probability1 => 0.01,);// Requires the GD LibraryHeader ("Content-type: image/png ");$ Im = imagecreatetruecolor (256,256) or die ("Cannot Initialize new GD image stream ");$ White = imagecolorallocate ($ im, 255,255,255 );$ Start = microtime (true );For ($ y = 0 ;y y For ($ x = 0; $ x If (random ($ setting) === 1 ){Imagesetpixel ($ im, $ x, $ y, $ white );}}}$ Time = microtime (true)-$ start;Header ("X-Exe

Copy codeThe Code is as follows: $ Setting = array ( // Black Probability 0 => 0.99, // White Probability 1 => 0.01, ); // Requires the GD Library Header ("Content-type: image/png "); $ Im = imagecreatetruecolor (256,256) or die ("Cannot Initialize new GD image stream "); $ White = imagecolorallocate ($ im, 255,255,255 ); $ Start = microtime (true ); For ($ y = 0 ;y y For ($ x = 0; $ x If (random ($ setting) === 1 ){ Imagesetpixel ($ im, $ x, $ y, $ white ); } } } $ Time = microtime (true)-$ sta

Measure calculation process of View in Android In Android, Veiw goes through three phases in sequence from memory to display on the UI: Traffic calculation-> Layout-> drawing, for details about the overall mechanism of View calculation, layout, and drawing, see the layout and Drawing Mechanism of View in Android. Volume is the basis of layout and drawing, so it

= res.tostring (). Split (".") [1].length} catch (e) {r1 = 0}; try {r2 = num.tostring (). Split (".") [1].length} catch (e) {r2 = 0}; m = Math.pow (Ten, Math.max (R1, r2)); num = (RES * m + num * m)/M }); return num;}　　Subtraction function accsubtr () {let arr = Array.prototype.slice.call (arguments); Let num = arr[0]; Arr.shift (); Arr.map (res = {Let r1, R2, M, N

packagecom.zf.s2;//创建一个包importjava.math.BigInteger;//导入类importjava.util.ArrayList;importjava.util.List;publicclassTextFactorial {//操作计算阶乘的类publicstaticintsimpleCircle(intnum){//简单的循环计算的阶乘intsum=1;if(num0){//判断传入数是否为负数thrownewIllegalArgumentException("必须为正整数!");//抛出不合理参数异常}for(inti=1;i//循环numsum *= i;//每循环一次进行乘法运算}returnsum;//返回阶乘的值}publicstaticintrecursion(intnum){//利用递归计算阶乘intsum=1;if(num 0)thrownewIllegalArgumentException("必须为正整数!");//抛出不合理参数异常if(num==1){return1;//根据条件,跳出循环}else{sum=num * recu

Question number: 201509-2 Question Name: Date Calculation Time limit: 1.0s Memory Limit: 256.0MB Problem Description: Problem description Given a year y and an integer d, ask what day D of the year is a few months.Note that the leap year of February has 29 days. A leap year satisfies one of the following conditions:1 The year is an integer multiple of 4, and is not 100 integral times;

Do projects sometimes get an activity or something, to let users participate, both to attract users to register, but also improve the user activity of the site. At the same time to participate in the user will receive a certain prize, there are 100% of winning, there is a certain probability of winning, big such as the ipad, small in a Q currency. Then we will certainly design the algorithm in the program, that is, in accordance with a certain probability for users to receive prizes. In fact, t

PHP probability calculation function summary, php Probability Function In fact, this blog is useless. It's too simple. People will not be able to think about it, and even people will think about it. But it's really bad to watch my blog for so long ~. In the next article, only the code of hydrology occupies at least 10 KB of OSC database space. This is a classic probability algorithm function: Function get_rand ($ proArr) {$ result = ''; // The total

PHP probability calculation function summary, php probability function. Summary of PHP probability computing functions. php probability functions are actually useless in this blog. it's too simple for people to think about it. no one else can think about it. But looking at the summary of PHP probability computing functions, php probability functions In fact, this blog is useless. it's too simple. people will not be able to think about it, and even pe

Preface: As we all know, the room is the operation of electronic equipment, and electronic equipment, large size, and very heavy, so the room to have a higher load-bearing capacity, to meet the load-bearing requirements of equipment, but now many buildings are not built for the engine room, its load-bearing can not meet the requirements of the room, so in the construction of the engine room The following details of the room load-bearing standards, as well as the computer room load