prolog 找路例子程序:
=== === === === === ===
Part 1-Adding connections
Part 2-Simple Path
example
| ?- path1(a,b,P,T).
will produce the response:
T = 15
P = [a,b] ?
Part 3 - Non-repeating path
As an example, the query:
?- path2(a,h,P,T).
will succeed and may produce the bindings:
P = [a,depot,b,d,e,f,h]
T = 155
Part 4 - Generating a path below a cost threshold
As an example, the query:
?- path_below_cost(a,[a,b,c,d,e,f,g,h],RS,300).
returns:
RS = [a,b,depot,c,d,e,g,f,h] ?
RS = [a,c,depot,b,d,e,g,f,h] ?
no
==================================
標簽:
Part
connections
example
prolog
上傳時間:
2015-04-24
上傳用戶:ljt101007
This section contains a brief introduction to the C language. It is intended as a tutorial on the language, and aims at getting a reader new to C started as quickly as possible. It is certainly not intended as a substitute for any of the numerous textbooks on C. 2. write a recursive function FIB (n) to find out the nth element in theFibanocci sequence number which is 1,1,2,3,5,8,13,21,34,55,…3. write the prefix and postfix form of the following infix expressiona + b – c / d + e * f – g * h / i ^ j4. write a function to count the number of nodes in a binary tr
標簽:
introduction
the
contains
intended
上傳時間:
2013-12-23
上傳用戶:liansi
動態規劃的方程大家都知道,就是
f[i,j]=min{f[i-1,j-1],f[i-1,j],f[i,j-1],f[i,j+1]}+a[i,j]
但是很多人會懷疑這道題的后效性而放棄動規做法。
本來我還想做Dijkstra,后來變了沒二十行pascal就告訴我數組越界了……(dist:array[1..1000*1001
div 2]...)
無奈之余看了xj_kidb1的題解,剛開始還覺得有問題,后來豁然開朗……
反復動規。上山容易下山難,我們可以從上往下走,最后輸出f[n][1]。
xj_kidb1的一個技巧很重要,每次令f[i][0]=f[i][i],f[i][i+1]=f[i][1](xj_kidb1的題解還寫錯了)
標簽:
動態規劃
方程
家
上傳時間:
2014-07-16
上傳用戶:libinxny
數字音樂盒
(1) 硬件電路中用P1.0~P1.7控制按鍵,其中P1.0~P1.3掃描行,P1.4~P1.7掃描列。
(2) 用P0.0~P0.7,P2.0~P2.7控制LED,其中P0.0~P0.7控制七段碼a,b,c,d,e,f,g,用P2.0~P2.7為數碼管位選信號。
(3) 用,P2.0~P2.2作為LCD的RS,R/W,E的控制信號。用P0.0~P0.7作為LCD的D0~D7的控制信號。
(4) 用P3.7口控制蜂鳴器(J2,J4斷開,J3短接)。
(5) 電路為12MHZ晶振頻率工作,起振電路中C1,C2均為30pf。
標簽:
1.0
1.7
數字
控制
上傳時間:
2016-12-03
上傳用戶:ruixue198909
找一個最小的自然數,使它等于不同的兩組三個自然數的三次冪之和,即找最小的x,使得:x=a*a*a+b*b*b+c*c*c = d*d*d+e*e*e+f*f*f 其中,a,b,c,d,e,f都是自然數,a<=b<=c, d<=e<=f [a,b,c]!=[d,e,f]
進一步,是否還存在另外一個自然數滿足上述條件,可能的話請輸出其結果
標簽:
上傳時間:
2017-05-16
上傳用戶:vodssv