cipher encoder

This paper illustrates the method of generating random cipher by Python3, which has a wide range of practical value in Python programming. The specific methods are as follows: This article mainly realizes the creation of 8-bit random password (uppercase and lowercase + digits), and uses Python3 to generate the random password of the primary algorithm. The main functional code is as follows: __author__ = ' Goopand ' import string import random

information of the keyboard The following function is to identify the coordinates of the cipher keyboard by means of an image recognition method. The password keyboard encountered is shown in the following figure There is also the contents of the input box, I have to intercept. Solution idea: 1, image recognition, and then click the coordinates 2, development cooperation, to the specific app package, lift the security keyboard. The second method is

Portal: http://www.lydsy.com/JudgeOnline/problem.php?id=1031Save the suffix array template.In fact, if the data range is smaller, or the space limit is a little larger, or even as long as the alphabet is a little bit more can use the suffix automaton, but unfortunately the space is not allowed, just use the suffix array!In fact, I still do not understand the code, whether it should be a black box code back down?#include 　　_bzoj1031 [JSOI2007] character encryption

http://www.lydsy.com/JudgeOnline/problem.php?id=1406Test instructions: Given n, ask for x^2==1%nX^2-1=k*n(x+1) * (x-1) ==k*n(x+1) (x-1)%n=0N=a*b(x+1) |a and (x-1) |b or (x-1) |a and (x+1) |b1#include 2#include 3#include 4#include 5#include string>6#include 7#include Set>8 #definell Long Long9 using namespacestd;Ten intN; One Setint>ans; A intMain () { -scanf"%d",n); - intLen= (int) sqrt (n); theAns.insert (1); - for(intI=1; i) - if(n%i==0){ - inta=n/i,b=i,x; + for

--)#defineMS0 (a) memset (A,0,sizeof (a))#defineMS1 (a) memset (A,-1,sizeof (a))#defineMSi (a) memset (A,0x3f,sizeof (a))#defineINF 0x3f3f3f3f#defineLson L, M, RT #defineRson m+1, R, RT #definePB Push_backtypedef __int64 Ll;templatevoidRead1 (T m) {T x=0, f=1;CharCh=GetChar (); while(ch'0'|| Ch>'9'){if(ch=='-') f=-1; ch=GetChar ();} while(ch>='0'ch'9') {x=x*Ten+ch-'0'; ch=GetChar ();} M= x*F;} TemplatevoidRead2 (T a,t b) {Read1 (a); Read1 (b);} TemplatevoidRead3 (T a,t b,t c) {Read1 (a); Read1

First of all, for each position, it starts the hash of the length of Y, and then for the hash value of the vertical column of the hash value, sorted after the outstanding number.Time Complexity $o (n^2\log N) $.#include 　　BZOJ1170: [Balkan2007]cipher

Sometimes we do not log on to the server for a long time will forget the password, want to retrieve the password, you can try to use the following tools.The purpose of this article is not to give you the solution, just for the convenience of work to retrieve the password. In fact, you can also change the password through rescue mode. If someone has done something bad through this article, it is irrelevant to the author of this article. Technology is endless, use caution.wget--no-check-certificat

Test instructions: Was killed by test instructions ... orz ..... That substitution is not an ASCII code plus a few ... is to randomly change to another character ...Solution: Just count the number of occurrences of each letter and then sort the array teller.Code:#include 　　POJ 2159 Ancient Cipher

After the row to find the map = = The number of occurrences of the order to determine equality1#include 2#include 3#include 4#include 5 using namespacestd;6 Chars1[ the],s2[ the];7 intnum1[ -],num2[ -];8 intMain ()9 {Ten while(~SCANF ("%s%s", S1,S2)) One { A intlen=strlen (S1); - for(intI=0;i -; i++) num1[i]=num2[i]=0; - for(intI=0; i) the { -num1[s1[i]-'A']++; -num2[s2[i]-'A']++; - } +Sort (num1,num1+ -); -Sort (num2,num2+ -); + BOOLfla

(112Sample Output15711HintsourceSolutionTest instructions is very simple, $x ^{2}\equiv 1\left (mod n \right) $ on $\left [1,n\right] $ on all solutionsConvert: $x ^{2}= kxn+1$$x ^{2}-1=kxn$$ (x+1) (x-1) =kxn$So make $x+1=k ' xn ', x-1=k ' xn ' $ meet $k ' xk ' =k,n ' xn ' =n$Then find the approximate number of N, enumerate more than $\sqrt n$ and judge the approximateThe answer will be repeated, need to go to the heavy, here apply setCode#include #include#include#include#include#includeSet>usi

ProblemTest instructionsGive you a chemical formula that contains only Chon organic matter, such as C6H5OH, for relative molecular massAnalysis。。。Code #include UVA 1586 Ancient Cipher

){ theSystem.out.print ((count_x+1) + "th:"); - for(intcount_y=0; count_y) theSystem.out.print (mid_out[count_x][count_y]+ ""); the System.out.println (); the }94System.out.println ("the" +i+ "th result as ..." +j); the the the }98 AboutSYSTEM.OUT.PRINTLN ("The result is:" +out_result); - for(inti=0; i){101 102 System.out.println (K[i]);103 }104 } the 106 Public Static BooleanCheck_succe

/*Old password for Chinese questionsYou can see if you can change the location of the first character to exactly match the 26 letters of the second character.Solution: count the number of characters in two strings. If the number of characters in each string is the same, yes is output; otherwise, no is output.Difficulties: it is a little difficult to count the number of times each character appears.Key Point: SortingProblem solving person: lingnichongSolution time:Experience in solving problems:

Topic Link: Click to open the linkTitle: Give a sequence of encodings, each of which encodes the character on the I bit back to the a[i] bit. Then give a k, and the initial string, ask what the string after K-Times is.K may be very large, can not be violent, so to use the permutation group, to find the rotation of the ring, assuming that the number of m in the ring, then each code m, it represents this back to the initial state, can be used k%m, so reduce the number of encodings. If the position

, *y =T2; theRep (I,0, M-1) C[i] =0; -Rep (I,0, N-1) C[x[i] = s[i]]++; -Rep (I,1, M-1) C[i] + = c[i-1]; -Down (i,n-1,1) Sa[--c[x[i]] =i; + for(intK =1; K 1){ - intp =0; Rep (i,n-k,n-1) y[p++] =i; +Rep (I,0, N-1)if(Sa[i] >= k) y[p++] = Sa[i]-K; ARep (I,0, M-1) C[i] =0; atRep (I,0, N-1) c[x[y[i]]]++; -Rep (I,1, M-1) C[i] + = c[i-1]; -Down (i,n-1,0) sa[--c[x[y[i] []] =Y[i]; - swap (x, y); -p =1, x[sa[0]] =0; -Rep (I,1, N-1) inX[sa[i]] = y[sa[i]] = = y[sa[i-1]] y[sa[i-1]+k] = = Y[sa[i]

string over the $sa$ value, the last character of each string corresponds to the $s[sa[i]+n-1]$1#include 2 using namespacestd;3 Chars[200005];4 intsa[200005], wv[2][350005], tong[200005];5 6 BOOLcmpint*tmp,intXintYintj)7 {8 returnTMP[X] = = Tmp[y] tmp[x + j] = = Tmp[y +j];9 }Ten One voidGetsa (intNintm) A { - intp =0, *x = wv[0], *y = wv[1]; - for(inti =0; I i) the++tong[x[i] =S[i]]; - for(inti =1; I i) -Tong[i] + = tong[i-1]; - for(inti = n-1; ~i; --i) +Sa[--tong[x[i

into:WangxiMingThe second step. The ASCII values of all characters perpendicular to the same position are added to produce 6 numbers, as in the example above,It is concluded that:228 202 220 206 120 105The third step. And then the number of each digit "indent" Processing: the number of each bit is added, the figure if not aNumber, it is then indented until it becomes a digit. For example: 228 = 2+2+8=12 = 1+2=3The above number is reduced to: 344836, which is the final output of the program!Requ

Virginia Code table650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M01/78/14/wKioL1Z1WwDBEaHWAAGY7UKfZSE837.jpg "title=" 3ac79f3df8dcd100d56d833d748b4710b9122f3c.jpg "alt=" Wkiol1z1wwdbeahwaagy7ukfzse837.jpg "/>=============================================#维吉尼亚密码 encryptionkey= ' HelloWorld 'plaintext= ' Whereisthekey '#key = ' Relations '#plaintext = ' Tobeornottobeth 'Ascii= ' ABCDEFGHIJKLMNOPQRSTUVWXYZ 'Keylen=len (Key)Ptlen=len (plaintext)ciphertext = ' 'i = 0While I j = i% KeylenK =

1.Encryption Algorithm Daquan:Rsa:RSA is made of the initial letters of the surnames of Ron Rivest, Adi Shamir, and Leonard Adleman, who first publicly desc Ribed the algorithm in 1977.Http://www.emc.com/corporate/about-rsa/index.htmHttps://en.wikipedia.org/wiki/RSA_%28cryptosystem%29DSA: Digitally Signature algorithm digital Signature AlgorithmECDSA: Elliptic Curve digital Signature algorithm Elliptic curve Signature algorithmDSS: Digital Signature StandardMD5: message-digest algorithm 5 messag

character. Equivalent to ' [^a-za-z0-9_] './xnMatch N, where n is the hexadecimal escape value. The hexadecimal escape value must be two digits long for a determination. For example, '/x41 ' matches ' A '. '/x041 ' is equivalent to '/x04 ' ' 1 '. ASCII encoding can be used in regular expressions:/numMatches num, where num is a positive integer. A reference to the obtained match. For example, ' (.) /1 ' matches two consecutive identical characters./nIdentifies an octal escape value or a backwar