兩臺(tái)處理機(jī)A 和B處理n個(gè)作業(yè)。設(shè)第i個(gè)作業(yè)交給機(jī)器 A 處理時(shí)需要時(shí)間ai,若由機(jī)器B 來(lái)處理,則需要時(shí)間bi。由于各作 業(yè)的特點(diǎn)和機(jī)器的性能關(guān)系,很可能對(duì)于某些i,有ai >=bi,而對(duì)于 某些j,j!=i,有aj<bj。既不能將一個(gè)作業(yè)分開(kāi)由兩臺(tái)機(jī)器處理,也沒(méi) 有一臺(tái)機(jī)器能同時(shí)處理2 個(gè)作業(yè)。設(shè)計(jì)一個(gè)動(dòng)態(tài)規(guī)劃算法,使得這兩 臺(tái)機(jī)器處理完成這n 個(gè)作業(yè)的時(shí)間最短(從任何一臺(tái)機(jī)器開(kāi)工到最后 一臺(tái)機(jī)器停工的總時(shí)間)。研究一個(gè)實(shí)例:(a1,a2,a3,a4,a5,a6)= (2,5,7,10,5,2);(b1,b2,b3,b4,b5,b6)=(3,8,4,11,3,4)
上傳時(shí)間: 2014-01-14
上傳用戶:獨(dú)孤求源
(一) 求a~b 之間各個(gè)數(shù)的約數(shù)個(gè)數(shù)之和。(其中包括a和b在內(nèi)) ans = sigma(f(i)) , (a <= i <= b) , 其中f(i)表示i的約數(shù)的個(gè)數(shù)
上傳時(shí)間: 2016-12-31
上傳用戶:daoxiang126
this is a Implementation of a B* tree,not yet completed, because I need help for this task.
標(biāo)簽: this Implementation completed because
上傳時(shí)間: 2013-11-27
上傳用戶:xinyuzhiqiwuwu
//9488定時(shí)器B功能測(cè)試 9488定時(shí)器B功能測(cè)試B:DAMI調(diào)試通過(guò): 9488 8位定時(shí)器B的使用 有關(guān)的I/O為三個(gè):TBPWM(輸出)(P1.0) 模式有:間隔定時(shí)功能,PWM模式 有定時(shí)中斷:定時(shí)器B溢出中斷
標(biāo)簽: 9488 TBPWM DAMI 定時(shí)器
上傳時(shí)間: 2017-06-01
上傳用戶:ryb
介紹行列劃分算法和矩陣相乘并行算法M P I 程序, 給出基于矩陣相乘并行算法的M P I 實(shí)現(xiàn), 分析和討 論處理器數(shù)目、復(fù)雜性、矩陣劃分、B 子塊傳遞、死鎖避免和矩陣數(shù)據(jù)的獲取等問(wèn)題.
上傳時(shí)間: 2017-06-03
上傳用戶:royzhangsz
重點(diǎn)介紹了C + + B u i l d e r集成開(kāi)發(fā)環(huán)境,以便讀者在創(chuàng)建應(yīng)用程序時(shí)能充分利用其強(qiáng)大的功能,從而達(dá)到事半功倍的效果。
標(biāo)簽: 集成開(kāi)發(fā)環(huán)境
上傳時(shí)間: 2013-12-25
上傳用戶:zsjzc
Stanley B Lippman和J o s é e L a j o i e寫(xiě)的c++ primer 中文版(第三版)。
標(biāo)簽: Stanley Lippman primer
上傳時(shí)間: 2017-06-12
上傳用戶:talenthn
ger鏴kten 鰊emli bir uygulama 鰎ne餴 sergilemektedir baar齧 b鰈e i...
標(biāo)簽: sergilemektedir uygulama emli kten
上傳時(shí)間: 2013-12-16
上傳用戶:上善若水
I. C. Wong, Z. Shen, J. G. Andrews, and B. L. Evans, ``A Low Complexity Algorithm for Proportional Resource Allocation in OFDMA Systems , Proc. IEEE Int. Work. Signal Processing Systems, 針對(duì)這篇文章給出的源代碼
上傳時(shí)間: 2014-01-24
上傳用戶:zhichenglu
針對(duì)目前使用的RS232接口數(shù)字化B超鍵盤(pán)存在PC主機(jī)啟動(dòng)時(shí)不能設(shè)置BIOS,提出一種PS2鍵盤(pán)的設(shè)計(jì)方法?;赪78E052D單片機(jī),采用8通道串行A/D轉(zhuǎn)換器設(shè)計(jì)了8個(gè)TGC電位器信息采集電路,電位器位置信息以鍵盤(pán)掃描碼序列形式發(fā)送,正交編碼器信號(hào)通過(guò)XC9536XL轉(zhuǎn)換為單片機(jī)可接收的中斷信號(hào),軟件接收到中斷信息后等效處理成按鍵。結(jié)果表明,在滿足開(kāi)機(jī)可設(shè)置BIOS同時(shí),又可實(shí)現(xiàn)超聲特有功能,不需要專門設(shè)計(jì)驅(qū)動(dòng)程序,接口簡(jiǎn)單,成本低。 Abstract: Aiming at the problem of the digital ultrasonic diagnostic imaging system keyboard with RS232 interface currently used couldn?蒺t set the BIOS when the PC boot, this paper proposed a design method of PS2 keyboards. Based on W78E052D microcontroller,designed eight TGC potentiometers information acquisition circuit with 8-channel serial A/D converter, potentiometer position information sent out with keyboard scan code sequentially.The control circuit based on XC9536 CPLD is used for converting the mechanical actions of the encoders into the signals that can be identified by the MCU, software received interrupt information and equivalently treatmented as key. The results show that the BIOS can be set to meet the boot, ultrasound specific functionality can be achieved at the same time, it does not require specially designed driver,the interface is simple and low cost.
標(biāo)簽: 單片機(jī) B超 數(shù)字化 鍵盤(pán)設(shè)計(jì)
上傳時(shí)間: 2013-10-10
上傳用戶:asdfasdfd
蟲(chóng)蟲(chóng)下載站版權(quán)所有 京ICP備2021023401號(hào)-1