Let L = {aibj | i ≠ j; i, j ≥ 0}. Design a CFG and...

Let L = {aⁱb^j | i ≠ j; i, j ≥ 0}.

Design a CFG and a PDA for this language. Provide a direct design for both CFG and PDA (no conversions from one form to another allowed).

Expert Solution

Colby Messinger answered 2 years ago

i j(i) i j(i) i j(i) i j(i) 0 -0.0499 7 -0.08539 13 0.144812 19 0.08021...

i j(i) i j(i) i j(i) i j(i) 0 -0.0499 7 -0.08539 13 0.144812 19 0.08021 1 0.107506 8 0.062922 14 -0.0499 20 -0.30103 2 -0.06719 9 -0.04444 15 -0.18366 21 -0.33834 3 -0.04717 10 0.219422 16 -0.02898 22 0.058373 4 -0.09176 11 0.083849 17 0.08021 23 0.79083 5 -0.25918 12 -0.02261 18 -0.14271 24 0.130254 6 0.055643 25 -0.10177 (3 points) Please encipher the following plaintext with Caesar Cipher and the encryption key of 10: TODAYISTUESDAY; (3 points) In...

int f2 (int n) j = 0; while (j <n) {for (int i = 0; i...

int f2 (int n) j = 0; while (j <n) {for (int i = 0; i <n; ++ i) {cout << "j =" + j; j = j + 5; }}

3. Let S3 act on the set A={(i,j) : 1≤i,j≤3} by σ((i, j)) = (σ(i), σ(j))....

3. Let S3 act on the set A={(i,j) : 1≤i,j≤3} by σ((i, j)) = (σ(i), σ(j)). (a) Describe the orbits of this action. (b) Show this is a faithful action, i.e. that the permutation represen- tation φ:S3 →SA =S9 (c) For each σ ∈ S3, find the cycle decomposition of φ(σ) in S9.

def longest(string): start=0;end=1;i=0; while i<len(string): j=i+1 while j<len(string) and string[j]>string[j-1]: j+=1 if end-start<j-i: #update if current...

def longest(string): start=0;end=1;i=0; while i<len(string): j=i+1 while j<len(string) and string[j]>string[j-1]: j+=1 if end-start<j-i: #update if current string has greater length than #max start and end end=j start=i i=j; avg=0 for i in string[start:end]: avg+=int(i) print('The longest string in ascending order is',string[start:end]) print('Teh average is',avg/(end-start)) s=input('Enter a string') longest(s) i need a definition and explanation of this code that how it works?

Give turing Machine for L= ai b2j ai b2j where i,j>=0. Also provide the logic, show...

Give turing Machine for L= a*i b*2j a*i b*2j where i,j>=0. Also provide the logic, show 1 or 2 strings for accept, reject .

6.1.5. Problem. Let J be the open unit interval (0, 1). For each a let Ua...

6.1.5. Problem. Let J be the open unit interval (0, 1). For each a let Ua = ?a, a + 1 ?, and let U = {Ua : 0 ≤ a ≤ 34 }. Then certainly U covers J . (a) Find a finite subfamily of U which covers J. (b) Explain why a solution to (a) does not suffice to show that J is compact. (c) Show that J is not compact.

Let a, b, c ∈ Q, (a, b) /= (0, 0), and consider the line L...

Let a, b, c ∈ Q, (a, b) /= (0, 0), and consider the line L = {(x, y) ∈ R2 ; ax + by = c}. State and prove a criterion in terms of the data a, b, c ∈ Q to check whether L∩Z2 = ∅, i.e., the line passes through no point with integer coordinates in the plane. Give an explicit example of such a line that is neither parallel to the x-axis nor to the y-axis!

Theory of Computation Problem Let G be an arbitrary CFG (Context-free Grammer), and let DG be...

Theory of Computation Problem Let G be an arbitrary CFG (Context-free Grammer), and let DG be the string-pushing PDA(pushdown automata) for it. Let w be some string of length n in L(G). Suppose you know that the leftmost derivation of w in G consists of m substitutions. How many transitions would be in the corresponding computation of DG for input string w? Justify your answer carefully.

Let L be the set of all languages over alphabet {0}. Show that L is uncountable,...

Let L be the set of all languages over alphabet {0}. Show that L is uncountable, using a proof by diagonalization.

Let L = {b2k aab2k | k ≥ 0}. Use Myhill-Nerode to prove that L is...

Let L = {b2k aab2k | k ≥ 0}. Use Myhill-Nerode to prove that L is not regular

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