eppraisal accuracy

HDU 2199#include #include#include#include#include#includeusing namespacestd;#defineN 510#defineINF 0x3f3f3f3f#defineMIN 0.00000001#defineS 0.0000001typedefLong LongLL;intA[n], B[n], c[n], sum[n*N];DoublejsDoublex) { return 8*x*x*x*x+7*x*x*x+2*x*x+3*x+6;}intMain () {intT; Doubley; scanf ("%d", T); while(t--) {scanf ("%LF", y); DoubleL, R, Mid; L=0, r= -; if(JS (0) >y | | js -) y) printf ("No solution!\n"); Else { while(r-l>s) {Mid= (l+r)/2; if(JS (mid) >y) R=mid+MIN; Else i

the smallest node number; If there ' s a tie, look at the second smallest node number, etc. Please note that the nodes is numbered from 1.Sample Input3 230 20 100 6 26 0 32 3 02 21 10 22 00 0Sample Output1 31 2Reprint Please declare: http://blog.csdn.net/lionel_dWhen writing code, always make SB's mistake!!! Cause wrong for a long time!! Always thought it was the wrong precision, O (╯-╰) O first enumerate m points, ask this m-point of the smallest spanning tree,, can,, at first I was the first

, 0.5,0.25,0.125, each last is 5, in addition to 2 end is 25, will always be able to do apart. 9, from the mathematical point of view, for the decimal, 2 binary can only represent the 3, the system can only represent 1/3, 2/3, 3 of the system cannot be 1/2, that is, half, you will say that 1.5/3 is half ah, this is a recursive question, that 1.5 how to use 3 binary representation? Can't say. Then 10 binary, can only represent 1/10, ... 9/10, and happens to be 5/10 is 1/2, so 10 binary can repres

The main idea: Define a sequence, f[i] = f[i/2] (i% 2 = = 0); F[i] = F[i/2] + F[I/2 + 1] (i 2 = = 1); Find the item m of this sequence (M Idea: Data range high precision did not run. Remember to do this before the weakening version of the problem, it seems that there is no high-precision memory search, the problem is to add a high precision.CODE:#include Bzoj 2656 Zjoi 2012 series (sequence) high accuracy + memory search

) = 0.019607843When ad=255, the ad converts the value =255*0.019607843=4.99999997=5 (V)Consider this: conversion value =255* (5/256) =4.98046875=4.98 (V) The result is wrong, let's take a look at this algorithm calculation example (1) to see:Interval (or resolution) of each tree = total element length/length =5/6=0.8333333333That is: the location of tree No. 0, the location of the 1th tree =0*0.8333333333=0 (m)Location of tree No. 1th, 2nd tree location =1*0.8333333333=0.8333333333 (m)Location o

When I recently used MATLAB, I met two rows or columns with the same values on the clearly displayed determinant. The obtained value of the determinant is a decimal point, not equal to 0, the reason may be the influence of the accuracy of MATLAB display. The value is rounded to zero. Therefore, in order to obtain the ten-digit decimal number with the same two rows or two columns, it is assumed that it is a four-digit decimal number! A = round (10000

A hand-written keyboard is needed in recent projects. We use the InkCanvas + InkAnalyer of WPF for development. The general code is as follows: var analyzer = new InkAnalyzer(); analyzer.AddStrokes(strokes, Constants.ChsLanguageId); analyzer.SetStrokesType(strokes, StrokeType.Writing); var status = analyzer.Analyze(); if (status.Successful) { return analyzer.GetAlternates() .OfType However, after

In an interview was asked, there are two double types of the number subtraction, the loss of precision will occur , what should be done, there is no workaround. Today specifically to search the next, the solution is to use the BigDecimal class to deal with the data.For more information: http://blog.csdn.net/u011328015/article/details/43969129This article is from the "Liu Zi blog" blog, please be sure to keep this source http://81876666.blog.51cto.com/8177516/1927226Java Learning Note--double typ

The following code: HTTP://IDEONE.COM/XCGHGW#include using namespacestd;intMain () {//your code goes here inti =0; I=9.0*0.6+0.6; coutEndl; I=9.0*0.6+0.6; coutEndl; I= (Double)(9.0*0.6+0.6); coutEndl; coutDouble)(9.0*0.6+0.6); return 0;}The intention is to print 4 x 6;But the printing results are:5556;Reason is9.0 * 0.6 of the return value is likely to be 5.3999...,+ 0.6 after 5.9999 ... Cast to int type is 5;Solutions are:Do not assign a double type of data to an integral type, or it may app

// Extend the timing accuracy through progress_timer // in principle Program Library Code Cannot be modified by users, but we can use the template technology to simulate progress_timer to write a new class // new_progress_timer to achieve output with any precision # include Running result: 2.6560000000 s

It was okay to get off work last night. After checking the bus route, I took the bus to visit the barrier at the front door. I accidentally felt the enthusiasm of the old Beijingers and the accuracy of the directions.Although I have been in Beijing for so many years, I have never been to this fence. When I got to the bus stop at the 11 th day, I realized that the pronunciation was dashilan ). When I got off the bus, I walked forward to another street

centimeter precision being told the length of the pieces he must cut. however, this time, the length is not known and the cable master is completely puzzled. You are to help the cable master, by writing a program that will determine the maximal possible length of a cable piece that can be cut from the cables in the stock, to get the specified number of pieces. Input The first line of the input file contains two integer numb ers N and K, separated by a space. N (1 = n = 10000) is the number of

SpringMVC3.2 resolves the data long accuracy loss problem when the PO returns to the foreground to JSONScheme1. Customizing a Jackson JSON conversion class Public classLongtostringadapterextendsObjectmapper {Private Static Final LongSerialversionuid = 4402127997078513582L; PublicLongtostringadapter () {Super(); Simplemodule Simplemodule=NewSimplemodule (); Simplemodule.addserializer (Long.class, tostringserializer.instance); Simplemodule.addse

The layout code is as followsJS code is as followsvar X=document.getelementbyid ("demo");function GetLocation () {if (navigator.geolocation) {Navigator.geolocation.getCurrentPosition (showposition);}else{X.innerhtml= "Geolocation is not supported by this browser.";}}function Showposition (position) {X.innerhtml= "Latitude:" + position.coords.latitude + "}HTML5 get the accuracy dimension of the current phone location

Python is really amazing ... Magic to no direct data type concept, and precision can be arbitrary precision . Think originally, first contact Oi algorithm, write the first algorithm is high-precision addition, tinkering for a half day. All in Python's view, just three lines of code can be done.#!/usr/bin/python3a=int (Input ()) B=int (input ()) print (A+B)Not only the integer type, but also the floating-point type!Data type accuracy issues in Python l

/^ ([a-z0-9]+ [a-z0-9-]* (?: [a-z0-9]+)]?)? [a-z0-9]+ [A-z0-9-]* (?: [a-z0-9]+)]? (\.us|\.tv|\.org\.cn|\.org|\.net\.cn|\.net|\.mobi|\.me|\.la|\.info|\.hk|\.gov\.cn|\.edu|\.com\.cn|\.com|\.co\. jp|\.co|\.cn|\.cc|\.biz) $/iMatch URL: /** * @author Default7 If there is a problem bug, please correct by default7#zbphp.com PHP regular post-strong match is a domain name, accuracy 99%

Math.jsHttp://cdnjs.cloudflare.com/ajax/libs/mathjs/3.20.1/math.jsJavaScript solves accuracy issues

and the intersection of the Ground Truth, which is the accuracy rate of the detection:Iou=detectionresult⋂groundtruthdetectionresult⋃groundtruth IoU = \frac{detectionresult⋂groundtruth} { Detectionresult⋃groundtruth} As shown in the following illustration:The blue box is: GroundtruthThe Yellow box is: DetectionresultThe green box is: Detectionresult⋂groundtruthThe red box is: Detectionresult⋃groundtruth to say. 1, this article refers to the followin

The family system of the 16-bit operation flow is this: Reader,writer abstract class, Then the implementation class Filereader,filewriter, write can write the string content directly, read or the same. Then is the base class wrapper class Bufferedreader,bufferwriter, which buffers the stream. The ReadLine can be used to read a line of lines, which can recognize line breaks. Then is the character array of the wrapper stream CharArrayReader, with the output content intercepting the stream charar

Tags: this subtraction string asc UNC replace Javascrip comment number Plusmake a note for a rainy future . AdditionNumber.prototype.add =functionARG) {var r1,r2,m;try{r1=This.tostring (). Split (".") [1].length}catch (e) {r1=0}Try{r2=arg.tostring (). Split (".") [1].length}catch (e) {r2=0} m=Math.pow (10,Math.max (R1,R2))Return (this*m+arg*m)/M}SubtractionNumber.prototype.sub =function (ARG) {ReturnThis.add (-ARG); }MultiplicationNumber.prototype.mul =function (ARG) {var m=0,s1=This.tostring ()