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(1) 、用下述兩條具體規(guī)則和規(guī)則形式實(shí)現(xiàn).設(shè)大寫字母表示魔王語言的詞匯 小寫字母表示人的語言詞匯 希臘字母表示可以用大寫字母或小寫字母代換的變量.魔王語言可含人的詞匯.
(2) 、B→tAdA A→sae
(3) 、將魔王語言B(ehnxgz)B解釋成人的語言.每個(gè)字母對應(yīng)下列的語言.
標(biāo)簽:
字母
tAdA
語言
詞匯
上傳時(shí)間:
2013-12-30
上傳用戶:ayfeixiao
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1.有三根桿子A,B,C。A桿上有若干碟子
2.每次移動(dòng)一塊碟子,小的只能疊在大的上面
3.把所有碟子從A桿全部移到C桿上
經(jīng)過研究發(fā)現(xiàn),漢諾塔的破解很簡單,就是按照移動(dòng)規(guī)則向一個(gè)方向移動(dòng)金片:
如3階漢諾塔的移動(dòng):A→C,A→B,C→B,A→C,B→A,B→C,A→C
此外,漢諾塔問題也是程序設(shè)計(jì)中的經(jīng)典遞歸問題
標(biāo)簽:
移動(dòng)
發(fā)現(xiàn)
上傳時(shí)間:
2016-07-25
上傳用戶:gxrui1991
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1. 下列說法正確的是 ( )
A. Java語言不區(qū)分大小寫
B. Java程序以類為基本單位
C. JVM為Java虛擬機(jī)JVM的英文縮寫
D. 運(yùn)行Java程序需要先安裝JDK
2. 下列說法中錯(cuò)誤的是 ( )
A. Java語言是編譯執(zhí)行的
B. Java中使用了多進(jìn)程技術(shù)
C. Java的單行注視以//開頭
D. Java語言具有很高的安全性
3. 下面不屬于Java語言特點(diǎn)的一項(xiàng)是( )
A. 安全性
B. 分布式
C. 移植性
D. 編譯執(zhí)行
4. 下列語句中,正確的項(xiàng)是 ( )
A . int $e,a,b=10
B. char c,d=’a’
C. float e=0.0d
D. double c=0.0f
標(biāo)簽:
Java
A.
B.
C.
上傳時(shí)間:
2017-01-04
上傳用戶:netwolf
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4. 假設(shè)有兩個(gè)按數(shù)據(jù)元素值非遞減有序排列的線性表A和B,均以單鏈表作為存儲結(jié)構(gòu)。編寫算法將A表和B表歸并成一個(gè)按元素值遞減有序(即非遞增有序,允許值相同)排列的線性表C。
標(biāo)簽:
數(shù)據(jù)
元素
減
線性
上傳時(shí)間:
2013-12-20
上傳用戶:笨小孩
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RSA算法 :首先, 找出三個(gè)數(shù), p, q, r, 其中 p, q 是兩個(gè)相異的質(zhì)數(shù), r 是與 (p-1)(q-1) 互質(zhì)的數(shù)...... p, q, r 這三個(gè)數(shù)便是 person_key,接著, 找出 m, 使得 r^m == 1 mod (p-1)(q-1)..... 這個(gè) m 一定存在, 因?yàn)?r 與 (p-1)(q-1) 互質(zhì), 用輾轉(zhuǎn)相除法就可以得到了..... 再來, 計(jì)算 n = pq....... m, n 這兩個(gè)數(shù)便是 public_key ,編碼過程是, 若資料為 a, 將其看成是一個(gè)大整數(shù), 假設(shè) a < n.... 如果 a >= n 的話, 就將 a 表成 s 進(jìn)位 (s
標(biāo)簽:
person_key
RSA
算法
上傳時(shí)間:
2013-12-14
上傳用戶:zhuyibin
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剖析Intel IA32 架構(gòu)下C 語言及CPU 浮點(diǎn)數(shù)機(jī)制
Version 0.01
哈爾濱工業(yè)大學(xué) 謝煜波
(email: xieyubo@126.com 網(wǎng)址:http://purec.binghua.com)
(QQ:13916830 哈工大紫丁香BBSID:iamxiaohan)
前言
這兩天翻看一本C 語言書的時(shí)候,發(fā)現(xiàn)上面有一段這樣寫到
例:將同一實(shí)型數(shù)分別賦值給單精度實(shí)型和雙精度實(shí)型,然后打印輸出。
#include <stdio.h>
main()
{
float a
double b
a = 123456.789e4
b = 123456.789e4
printf(“%f\n%f\n”,a,b)
}
運(yùn)行結(jié)果如下:
標(biāo)簽:
Version
xieyubo
Intel
email
上傳時(shí)間:
2013-12-25
上傳用戶:徐孺
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The PCA9549 provides eight bits of high speed TTL-compatible bus switching controlledby the I2C-bus. The low ON-state resistance of the switch allows connections to be madewith minimal propagation delay. Any individual A to B channel or combination of channelscan be selected via the I2C-bus, determined by the contents of the programmable Controlregister. When the I2C-bus bit is HIGH (logic 1), the switch is on and data can flow fromPort A to Port B, or vice versa. When the I2C-bus bit is LOW (logic 0), the switch is open,creating a high-impedance state between the two ports, which stops the data flow.An active LOW reset input (RESET) allows the PCA9549 to recover from a situationwhere the I2C-bus is stuck in a LOW state. Pulling the RESET pin LOW resets the I2C-busstate machine and causes all the bits to be open, as does the internal power-on resetfunction.
標(biāo)簽:
switch
Octal
9549
with
上傳時(shí)間:
2014-11-22
上傳用戶:xcy122677
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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
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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
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Simulator for a GSM traffic channel transmission and reception
This Simulink model simulates the entire transmission and reception of voice data of a traffic channel for GSM (TCH/FS)over a multipath fading channel, and it calculates the BER of the received signal
標(biāo)簽:
transmission
Simulator
reception
simulates
上傳時(shí)間:
2015-07-12
上傳用戶:BIBI