32 Let = {1, 2, 3, 4} and C = {we | in w, the number of is equals the number of 2s, and the number of 3s equals the number of 4s}. Show that C is not context free.
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Hello, Can you please help me with this problem because I am struggling on how to do this problem, Can yo explain it step by step and can you give a full detail explanation about this because I just don't understand. Thank you.
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- Project 1 dealt with single symbol Huffman Coding. Project 2 deals with Extended Huffman Codes. For instance, for a source emitting two symbols A and B, the second order extension involves coding messages AA, AB, BA and BB (22 in number). The third order extension involves messages such as AAA, AAB, etc. (23 in number). The probabilities of such strings are computed by multiplying the individual probabilities. For this project, use the Matlab code you have developed in Project 1 to perform third, fourth and fifth order extensions of a source message. 1. Choose an alphabet a set of at least six (6) symbols with assigned probabilities. 2. Compute the third, fourth and fifth order extension probabilities. 3. Using the built-in algorithm, derive the Huffman Code for each extension. 4. Compute the following quantities: (i) Average length of the codeword; (ii) The code efficiency; (iii) The Compression Ratio; (iv) Speed of computation.Write a classifier algorithm for p(Y |X,α)Correct answer will be upvoted else downvoted. Computer science. Presently Nezzar has a beatmap of n particular focuses A1,A2,… ,An. Nezzar might want to reorder these n focuses so the subsequent beatmap is great. Officially, you are needed to find a change p1,p2,… ,pn of integers from 1 to n, to such an extent that beatmap Ap1,Ap2,… ,Apn is great. In case it is unthinkable, you ought to decide it. Input The primary line contains a solitary integer n (3≤n≤5000). Then, at that point, n lines follow, I-th of them contains two integers xi, yi (−109≤xi,yi≤109) — directions of point Ai. It is ensured that all focuses are unmistakable. Output In case there is no arrangement, print −1. In any case, print n integers, addressing a legitimate change p. In case there are numerous potential replies, you can print any.
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- 9. Suppose you are searching for a girls name written using only the lettersD, N and A. You have the letters ordered alphabetically (A, D, N)and you start writing down possibilities:A, D, N, AA, AD, AN, DA, DD, DN, NA, ND, NN, ...(a) How many strings of four or fewer letters are there where theletters are D, N or A?(b) In the above possibilities, are you searching in a depth first orbreadth first way?(c) What are the next three possible names you would write down?(d) How many possibilities will you write down ANNA?Correct answer will be upvoted else downvoted. Computer science. You are given three positive (more prominent than nothing) integers c, d and x. You need to track down the number of sets of positive integers (a,b) with the end goal that balance c⋅lcm(a,b)−d⋅gcd(a,b)=x holds. Where lcm(a,b) is the most un-normal various of an and b and gcd(a,b) is the best normal divisor of an and b. Input The primary line contains one integer t (1≤t≤104) — the number of experiments. Each experiment comprises of one line containing three integer c, d and x (1≤c,d,x≤107). Output For each experiment, print one integer — the number of sets (a,b) to such an extent that the above uniformity holds.Exercise 1.A set W of strings of symbols is defined recursively by a, b, and d belong to W. If x belongs to W, so does a(x)d. Provide 3 strings made of 3 letters each belonging to W and show the procedure used to obtain them. Provide 3 strings made of at least 5 letters each belonging to W and show the procedure used to obtain them.
- Suppose team A plays in a best-of-7-game series. In sports sometimes teams play in a series until one team has won 4 games in the series. When a team wins its fourth game the series concludes because after a team has won 4 games it is guaranteed to win more games than its opponent even if all 7 games are played. When team A wins a game we write a W and when team A loses a game we write a L. So the sequence WWLLLWL means team A won the first, second and sixth games in the series and lost the other games. Team A lost the series. The sequence LWWLWW indicates team A won the second, third, fifth and sixth games. Team A won the series in 6 games. Given that team A wins the fifth game how many sequences of wins and losses are possible if team A wins the series?Please explain Crime Wave more clearly for me please there's a picture of the decription and also please comment on each line if possible on the code below to for me to have a better understanding of what each line is doing. It is in C++. Please also give the space and time complexity and the reason why. #include <stdio.h>#include <string.h>#include <math.h>#define eps 1e-6double W[105][105];int N, M;int mx[105], my[105]; // match arrdouble lx[105], ly[105]; // label arrint x[105], y[105]; // used arrint hungary(int nd) { int i; x[nd] = 1; for(i = 1; i <= M; i++) { if(y[i] == 0 && fabs(W[nd][i]-lx[nd]-ly[i]) < eps) { y[i] = 1; if(my[i] == 0 || hungary(my[i])) { my[i] = nd; return 1; } } } return 0;}double KM() { int i, j, k; double d; memset(mx, 0, sizeof(mx)); memset(my, 0, sizeof(my)); memset(lx, 0, sizeof(lx)); memset(ly, 0, sizeof(ly));…The language we are using here is in Racket. Please try tying each of the following (car '(11 12 13 14)) (car '(a b c d)) (cdr '(11 12 13 14)) (cdr '(a b c d)) (car (11 12 13 14)) (cdr (a b c d)) What do car and cdr do? That last line of the above should cause an error. Explain why the single quote necessary and what it does.