webwork answers

t=0 moment to see his influence on the next (t=4) moment (4 seconds from now) is visible x (0) *h (4)stand at t=1 moment to see his influence on the future (t=4) Moment (3 seconds from now), Visible is X (1) *h (3)stand at t=2 moment to see his influence on the future (t=4) Moment (2 seconds from now), Visible is X (2) *h (2)stand at t=3 moment to see his influence on the future (t=4) Moment (1 seconds from now), Visible is X (3) *h (1)So the so-called flip just because you are standing is now

2-101. Use try...ecxept to determine if the input is a number#!/usr/bin/env python#Encoding:utf-8 while1: Try: A= Float (Raw_input ('plz input a number:')) if1 : Print 'success!' Break Else: Print 'plz input A number between 1~100!' exceptValueError:Print 'What are you input are not a numer!2-111. Use the IF statement to determine the selection#!/usr/bin/env python#Encoding:utf-8Importipdbdefto_average (): The_sum=0 A=0 forIin

= [[B alloc] init];a. transparendvaluedelegate = b;//Set Object A proxy As Object b This allows the value to be passed through a delegate between views A and B! The following example delegate has two types: 1, a View class object proxy object is the parent view, the child view with the proxy implementation let the parent view display other child View 2, a child view under the same parent view is another child view of the proxy object, Let another child view change its background color to the g

merge does not display feature, leaving only a single branch record.47419069?locationnum=1081020370Https://www.cnblogs.com/hechao123/archive/2017/02/12/6390359.htmlTell me about the difference between Reset and revert .Revert is overwriting an old mistake with a new commit commit,reset is to return all commits after the wrong commit. Revert the commit of a commit,reset fallback of an interval.669737348050604119.git commit A problem, modify the commit with what command? 72948722Http://www.sof

,v,w; toscanf"%d%d%d",u,v,W); + Addedge (u,v,w); - } the } * $ intCheckintx)Panax Notoginseng { -queueint>que; thememset (Inque,0,sizeof(Inque)); +memset (DIS,0x7f,sizeof(DIS)); Adis[1]=0, inque[1]=1; theQue.push (1); + while(!que.empty ()) - { $ intHead=Que.front (); Que.pop (); $inque[head]=0; - for(intI=0; I) - { the intnowlen,to=e[head][i].to; - if(e[head][i].dis>x) nowlen=1;Elsenowlen=0;Wuyi if(dis[head]+nowlenDis[to

I don't know any questions during PHP pre-processing statement execution. please give me some answers and there are not many scores. below is the code $ Servername = 'servername'; // Server Name $ username = 'username'; // database username $ password = 'password'; // login password $ dbname = 'mydb '; // create a connection $ conn = new mysqli ($ servername, $ username, $ password, $ dbname); // Check the connection (applicable to PHP 5.2.9 and 5.3.0

Php: answers Cainiao questions $ SQL = "select * from lydata where name LIKE '%". $ search. "% '"; $ Query = mysql_query ($ SQL) or die ("link failed "); While ($ row = mysql_fetch_array ($ query )){ ?> How can I make the last search disappear when I return to another page or refresh it or perform the next search? Reply to discussion (solution) Don't understand what you mean The code is incomplete. let's se

integer:"== 1 while number : Print (i) = i + 1 = number-1Question Three: Requirements(read The original answer, still do not understand,) source code attachedtemp = input ('Please enter an integer:') number=int (temp) whilenumber:i= Number-1 whileI:Print(' ', end ="') I= I-1J= number whileJ:Print('*', end ="') J= J-1Print() number= Number-1Proper noun explanation: short circuit logicIf A and B: #如果a是false, then skip B's judgment and result directly falseIf a or B: #如果a为true, then ski

: std: cin> cheeses;2.6.8. What statements can be used to print "We have X varieties of cheese," where X is the current value of the variable cheeses.Solution: std: cout 2.6.9. What information does the following function prototype indicate about the function? Int froop (double t); void rattle (int n); int prune (void );Solution: The first function inputs a double value and returns an int value. The second function inputs an int value without returning the value. The second function re

Analysis: This problem and HDU3047, all are with the right and check set, after the input and the first input of the number of conflictsAnd then actually use and check the set to maintain a tree, small as a large ancestor, and then this tree each node to the root of the path weights are relative to the root node distanceThis allows you to maintain distance limits and judge conflicts#include #include#include#includeSet>#include#include#include#include#include#includeusing namespacestd;Const intn=

Example 7.1#!/usr/bin/env python#Encoding:utf-8Importipdbdb={}defNewUser (): Prompt='Login Desierd:' whileTrue:name=raw_input (Prompt)ifNameinchdb:prompt='name Taken, try another:' Continue Else: Breakpwd= Raw_input ('passwd:') Db[name]=pwddefOlduser (): Name= Raw_input ('Login:') PWD= Raw_input ('passwd:') passwd=db.get (name)ifpasswd = =pwd:Print 'Welcome back', nameElse: Print 'Login Incorrect'defShowMenu (): Prompt="""(N) EW user login (E) xisting use

...At this time, can you put these public methods in one place?Great prototype appear, each function has a prototype attribute, which is actually a pointer, always point to an objectWhat is the purpose of this object? ---to include specific properties and methods, and act as a share of all instances functionRen () {}varobj=Ren.prototype; //alert (obj.constructor);Obj.name= ' Wednesday '; Obj.age=20; OBJ.FA=function() {alert ( This. Name); }; varp1=Newren (' W ', 20); varP2=NewRen ();

; $ } $ if(s[i][j]=='*') flag=0, acr[cnt1].ans[tmp]=' /'; - if(flag) - { theacr[cnt1].ans[tmp++]=S[i][j]; - if(j==c-1) flag=0, acr[cnt1].ans[tmp]=' /';Wuyi } the } - } Wuflag=0; - for(intj=0; j) About { $ for(intI=0; i) - { - if((i==0|| s[i-1][j]=='*') s[i][j]!='*') - { Adown[++cnt2].num=Fl[i][j]; +tmp=0, flag=1; the } - if(s[i][j]=='*

Kneeling for answers, PHP coding problems Recently downloaded from the Internet a source code, inside the Chinese characters go are garbled, similar to the following form: 鐎 Indigo extinguishing craftsmanships wengjiang λ 锟 bounded ゴ 濮濓絿 echnical?; /鐎 gauge administrative guy instill ã carry 礀 liben-Hi 嫬 mtr х 粭-block 獓 閸 Kong ﹢ Search锛 , his code is utf-8, I want to turn it into a normal Chinese character what to do, ask for guidance ..... --

other large file separate server. Use the Code optimization tool.29. Prevent SQL injection vulnerability generally with the __addslashes___ function.What is the difference between a value in 30.php and a pass-through or address? A: The value of the argument is the value assigned to the parameter to the row parameter, so the modification of the parameter does not affect the value of the argument.An address is a special way of transmitting a value, except that he passes an address, not an ordinar

module is a separate relationship so to use the else if instead of the original if to represent. However, after running the result is still error, the output is correct and the number of errors is always reversed, and found that in the main function, the return of the pointer is wrong, resulting in a result error. This is the problem encountered, these problems are caused by carelessness, there is a logic error. In the final analysis is the foundation is too poor, lack of practice!Arithmetic im

parts of IP address encoding?An IP address consists of a network number and a host number. However, it is only after bitwise AND top-up with the "subnet mask" that the network bit and host bit are distinguished. 13. The user inputs the M and N values. The number of sequential loops starts from 1 to n. This value is output on every count to m until all are output. Write cProgram.Cyclic linked list, with the remainder operation 14. The parameter types that cannot be switched () are:The Switch

all have to go to college to find a job, but not too like to open a taxi, open a shop, open a restaurant, put on the street breakfast snack stalls, such as "Fast track approach" project?"Child, I ask you to study hard, not because I want you to compare with others, but because, I hope you will have the right to choose, to choose meaningful, time work, rather than forced to make a living." When your work is meaningful in your heart, you have a sense of accomplishment. When your work gives you ti

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My idea is that all around the grid is set to ' * ', setting the sign array record starting grid#include #includeChara[ -][ -];intsign[ -][ -];intn =1;intMain () {intR, C, CNT, yes, first =1; while(SCANF ("%d", r) = =1) {memset (sign,0,sizeof(sign)); CNT=1; Yes=0; if(r = =0) Break; scanf ("%d",B); GetChar (); for(inti =1; I ) { for(intj =1; J ) {scanf ("%c",a[i][j]);} GetChar (); } for(inti =0; I 1; i + +) a[i][0] = a[i][c+1] ='*'; for(intj