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新<b>能源</b>充電標(biāo)準(zhǔn)GB20234-1

  • 源代碼用動(dòng)態(tài)規(guī)劃算法計(jì)算序列關(guān)系個(gè)數(shù) 用關(guān)系"<"和"="將3個(gè)數(shù)a

    源代碼\用動(dòng)態(tài)規(guī)劃算法計(jì)算序列關(guān)系個(gè)數(shù) 用關(guān)系"<"和"="將3個(gè)數(shù)a,b,c依次序排列時(shí),有13種不同的序列關(guān)系: a=b=c,a=b<c,a<b=v,a<b<c,a<c<b a=c<b,b<a=c,b<a<c,b<c<a,b=c<a c<a=b,c<a<b,c<b<a 若要將n個(gè)數(shù)依序列,設(shè)計(jì)一個(gè)動(dòng)態(tài)規(guī)劃算法,計(jì)算出有多少種不同的序列關(guān)系, 要求算法只占用O(n),只耗時(shí)O(n*n).

    標(biāo)簽: lt 源代碼 動(dòng)態(tài)規(guī)劃 序列

    上傳時(shí)間: 2013-12-26

    上傳用戶:siguazgb

  • The government of a small but important country has decided that the alphabet needs to be streamline

    The government of a small but important country has decided that the alphabet needs to be streamlined and reordered. Uppercase letters will be eliminated. They will issue a royal decree in the form of a String of B and A characters. The first character in the decree specifies whether a must come ( B )Before b in the new alphabet or ( A )After b . The second character determines the relative placement of b and c , etc. So, for example, "BAA" means that a must come Before b , b must come After c , and c must come After d . Any letters beyond these requirements are to be excluded, so if the decree specifies k comparisons then the new alphabet will contain the first k+1 lowercase letters of the current alphabet. Create a class Alphabet that contains the method choices that takes the decree as input and returns the number of possible new alphabets that conform to the decree. If more than 1,000,000,000 are possible, return -1. Definition

    標(biāo)簽: government streamline important alphabet

    上傳時(shí)間: 2015-06-09

    上傳用戶:weixiao99

  • 在目錄“上三角矩陣類(lèi)的實(shí)現(xiàn)”中給定了文件triMat.cpp、triMat.h

    在目錄“\上三角矩陣類(lèi)的實(shí)現(xiàn)”中給定了文件triMat.cpp、triMat.h,請(qǐng)把triMat.h文件中的9個(gè)填空位置補(bǔ)上正確的代碼,使triMat.cpp能完成上三角矩陣的加、減、乘運(yùn)算。要求輸入: 輸入矩陣維數(shù):4 輸入矩陣a的元素(包括0): 1 2 3 4 0 1 2 3 0 0 1 2 0 0 0 1 輸入矩陣b的元素(包括0): 1 2 3 4 0 1 2 3 0 0 1 2 0 0 0 1

    標(biāo)簽: triMat cpp 目錄 矩陣

    上傳時(shí)間: 2014-11-11

    上傳用戶:時(shí)代電子小智

  • 電力系統(tǒng)在臺(tái)穩(wěn)定計(jì)算式電力系統(tǒng)不正常運(yùn)行方式的一種計(jì)算。它的任務(wù)是已知電力系統(tǒng)某一正常運(yùn)行狀態(tài)和受到某種擾動(dòng)

    電力系統(tǒng)在臺(tái)穩(wěn)定計(jì)算式電力系統(tǒng)不正常運(yùn)行方式的一種計(jì)算。它的任務(wù)是已知電力系統(tǒng)某一正常運(yùn)行狀態(tài)和受到某種擾動(dòng),計(jì)算電力系統(tǒng)所有發(fā)電機(jī)能否同步運(yùn)行 1運(yùn)行說(shuō)明: 請(qǐng)輸入初始功率S0,形如a+bi 請(qǐng)輸入無(wú)限大系統(tǒng)母線電壓V0 請(qǐng)輸入系統(tǒng)等值電抗矩陣B 矩陣B有以下元素組成的行矩陣 1正常運(yùn)行時(shí)的系統(tǒng)直軸等值電抗Xd 2故障運(yùn)行時(shí)的系統(tǒng)直軸等值電抗X d 3故障切除后的系統(tǒng)直軸等值電抗 請(qǐng)輸入慣性時(shí)間常數(shù)Tj 請(qǐng)輸入時(shí)段數(shù)N 請(qǐng)輸入哪個(gè)時(shí)段發(fā)生故障Ni 請(qǐng)輸入每時(shí)段間隔的時(shí)間dt

    標(biāo)簽: 電力系統(tǒng) 計(jì)算 運(yùn)行

    上傳時(shí)間: 2015-06-13

    上傳用戶:it男一枚

  • 光學(xué)設(shè)計(jì)軟件zemax源碼: This DLL models an nular aspheric surface as described in: "Annular surfaces in

    光學(xué)設(shè)計(jì)軟件zemax源碼: This DLL models an nular aspheric surface as described in: "Annular surfaces in annular field systems" By Jose M. Sasian Opt. eng. 36 (12) P 3401-3401 December 1997 This surface is essentially an odd aspheric surface with an offset in the aspheric terms. The sag is given by: Z = (c*r*r) / (1+(1-((1+k)*c*c*r*r))^ 1/2 ) + a*(r-q)^2 + b*(r-q)^3 + c*(r-q)^4 + ... Note the terms a, b, c, ... have units of length to the -1, -2, -3, ... power.

    標(biāo)簽: described aspheric surfaces Annular

    上傳時(shí)間: 2014-01-08

    上傳用戶:yyyyyyyyyy

  • 上下文無(wú)關(guān)文法(Context-Free Grammar, CFG)是一個(gè)4元組G=(V, T, S, P)

    上下文無(wú)關(guān)文法(Context-Free Grammar, CFG)是一個(gè)4元組G=(V, T, S, P),其中,V和T是不相交的有限集,S∈V,P是一組有限的產(chǎn)生式規(guī)則集,形如A→α,其中A∈V,且α∈(V∪T)*。V的元素稱為非終結(jié)符,T的元素稱為終結(jié)符,S是一個(gè)特殊的非終結(jié)符,稱為文法開(kāi)始符。 設(shè)G=(V, T, S, P)是一個(gè)CFG,則G產(chǎn)生的語(yǔ)言是所有可由G產(chǎn)生的字符串組成的集合,即L(G)={x∈T* | Sx}。一個(gè)語(yǔ)言L是上下文無(wú)關(guān)語(yǔ)言(Context-Free Language, CFL),當(dāng)且僅當(dāng)存在一個(gè)CFG G,使得L=L(G)。 *⇒ 例如,設(shè)文法G:S→AB A→aA|a B→bB|b 則L(G)={a^nb^m | n,m>=1} 其中非終結(jié)符都是大寫(xiě)字母,開(kāi)始符都是S,終結(jié)符都是小寫(xiě)字母。

    標(biāo)簽: Context-Free Grammar CFG

    上傳時(shí)間: 2013-12-10

    上傳用戶:gaojiao1999

  • 一:需求分析 1. 問(wèn)題描述 魔王總是使用自己的一種非常精練而抽象的語(yǔ)言講話,沒(méi)人能聽(tīng)懂,但他的語(yǔ)言是可逐步解釋成人能聽(tīng)懂的語(yǔ)言,因?yàn)樗恼Z(yǔ)言是由以下兩種形式的規(guī)則由人的語(yǔ)言逐步抽象上去的: -

    一:需求分析 1. 問(wèn)題描述 魔王總是使用自己的一種非常精練而抽象的語(yǔ)言講話,沒(méi)人能聽(tīng)懂,但他的語(yǔ)言是可逐步解釋成人能聽(tīng)懂的語(yǔ)言,因?yàn)樗恼Z(yǔ)言是由以下兩種形式的規(guī)則由人的語(yǔ)言逐步抽象上去的: ----------------------------------------------------------- (1) a---> (B1)(B2)....(Bm) (2)[(op1)(p2)...(pn)]---->[o(pn)][o(p(n-1))].....[o(p1)o] ----------------------------------------------------------- 在這兩種形式中,從左到右均表示解釋.試寫(xiě)一個(gè)魔王語(yǔ)言的解釋系統(tǒng),把 他的話解釋成人能聽(tīng)得懂的話. 2. 基本要求: 用下述兩條具體規(guī)則和上述規(guī)則形式(2)實(shí)現(xiàn).設(shè)大寫(xiě)字母表示魔王語(yǔ)言的詞匯 小寫(xiě)字母表示人的語(yǔ)言的詞匯 希臘字母表示可以用大寫(xiě)字母或小寫(xiě)字母代換的變量.魔王語(yǔ)言可含人的詞匯. (1) B --> tAdA (2) A --> sae 3. 測(cè)試數(shù)據(jù): B(ehnxgz)B 解釋成 tsaedsaeezegexenehetsaedsae若將小寫(xiě)字母與漢字建立下表所示的對(duì)應(yīng)關(guān)系,則魔王說(shuō)的話是:"天上一只鵝地上一只鵝鵝追鵝趕鵝下鵝蛋鵝恨鵝天上一只鵝地上一只鵝". | t | d | s | a | e | z | g | x | n | h | | 天 | 地 | 上 | 一只| 鵝 | 追 | 趕 | 下 | 蛋 | 恨 |

    標(biāo)簽: 語(yǔ)言 抽象

    上傳時(shí)間: 2014-12-02

    上傳用戶:jkhjkh1982

  • We have a group of N items (represented by integers from 1 to N), and we know that there is some tot

    We have a group of N items (represented by integers from 1 to N), and we know that there is some total order defined for these items. You may assume that no two elements will be equal (for all a, b: a<b or b<a). However, it is expensive to compare two items. Your task is to make a number of comparisons, and then output the sorted order. The cost of determining if a < b is given by the bth integer of element a of costs (space delimited), which is the same as the ath integer of element b. Naturally, you will be judged on the total cost of the comparisons you make before outputting the sorted order. If your order is incorrect, you will receive a 0. Otherwise, your score will be opt/cost, where opt is the best cost anyone has achieved and cost is the total cost of the comparisons you make (so your score for a test case will be between 0 and 1). Your score for the problem will simply be the sum of your scores for the individual test cases.

    標(biāo)簽: represented integers group items

    上傳時(shí)間: 2016-01-17

    上傳用戶:jeffery

  • The XML Toolbox converts MATLAB data types (such as double, char, struct, complex, sparse, logical)

    The XML Toolbox converts MATLAB data types (such as double, char, struct, complex, sparse, logical) of any level of nesting to XML format and vice versa. For example, >> project.name = MyProject >> project.id = 1234 >> project.param.a = 3.1415 >> project.param.b = 42 becomes with str=xml_format(project, off ) "<project> <name>MyProject</name> <id>1234</id> <param> <a>3.1415</a> <b>42</b> </param> </project>" On the other hand, if an XML string XStr is given, this can be converted easily to a MATLAB data type or structure V with the command V=xml_parse(XStr).

    標(biāo)簽: converts Toolbox complex logical

    上傳時(shí)間: 2016-02-12

    上傳用戶:a673761058

  • 采用TC2.0作為開(kāi)發(fā)工具

    采用TC2.0作為開(kāi)發(fā)工具,實(shí)現(xiàn)學(xué)生成績(jī)管理系統(tǒng)的基本功能,包括: A. 學(xué)生成績(jī)管理系統(tǒng)界面的設(shè)計(jì)。 B. 實(shí)現(xiàn)以下幾個(gè)功能模塊: 1. 錄入學(xué)生成績(jī):以學(xué)號(hào)為關(guān)鍵字錄入某次考試中一科或多科(如語(yǔ)文、數(shù)學(xué)、英語(yǔ)等)的成績(jī)。 2. 查詢學(xué)生成績(jī),包括:(1)按學(xué)號(hào)查詢(只要輸入學(xué)號(hào),則系統(tǒng)輸出相關(guān)的成績(jī))。(2)查詢所有的學(xué)生的成績(jī)。 3. 修改/刪除學(xué)生成績(jī):修改/刪除某次考試中某個(gè)學(xué)生的某科或多科成績(jī)。 4. 統(tǒng)計(jì)學(xué)生成績(jī):包括個(gè)人總分及平均分,單科下平均分,總分最高分,總分最低分等。 5. 學(xué)生成績(jī)排序:條件可為學(xué)號(hào),各科成績(jī)等。

    標(biāo)簽: 2.0 TC 開(kāi)發(fā)工具

    上傳時(shí)間: 2016-06-26

    上傳用戶:xuanjie

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