Construct a regular expression for plate number in Saudi Arabia, e.g. RAB4377, JAK3233 State which language is False for the following regular expression (a+ | b) c (d*) = {abc, aac, aaacdd, acdd, abcd} (a* | b*) | d(e | f)* = {, aa, baa, de, def, deff, bb } (a | b)* de = {, ababde, aba, de, bbde}

Theory of computation: Write a program using c++ and pseudo code to check if the entering value following the grammar or not without checking if the grammar is left recursion or not: E ---> E + T | T T---> T * F | F F---> (E) | i Thanks in advance ( I hope you solve it fast with the right answer if you can't solve it leave it please! )

Write a program in C programming language that takes two arguments at the command line, both strings. The program checks to see whether or not the second string is a substring of the first (without using the substr -- or any other library -- function). One caveat: any * in the second string can match zero or more characters in the first string, so if the input were abcd and the substring was a*c, then it would count as a substring. Also, include functionality to allow an asterisk to be taken literally if preceded by a \, and a \ is taken literally except when preceding an asterisk.

Using the following variable bindings: (setq x ‘(a b c d)) (setq y ‘(1 2 3 4)) Using only variables x and y, car, cdr, and cons, write Lisp expressions to generate:  ((a c) (1 2)) . a)

Find a regular expression for L = {ab"w: n2 3, w e {a, b}*}.

Use c programming for the following question. Complete the coding and plz don't use any other libraries