Using the syntax of C, write a recursive-descent subprogram named initializer that corresponds to the following rules (taken from the C99 standard):   initializer: assignment-expression { initializer-list } { initializer-list，}   Note that { and } are terminals, not metasymbols. Assume that recursive-descent subprograms named assignment-expression and initializer-list already exist.

def optimize_tail_calls(original_scheme_eval): """Return a properly tail recursive version of an eval function.""" def optimized_eval(expr, env, tail=False): """Evaluate Scheme expression EXPR in Frame ENV. If TAIL, return an Unevaluated containing an expression for further evaluation. """ if tail and not scheme_symbolp(expr) and not self_evaluating(expr): return Unevaluated(expr, env) result = Unevaluated(expr, env) # fill in code code here while isinstance(result, Unevaluated): #code here return optimized_eval scheme_eval = optimize_tail_calls(scheme_eval)

1

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! )

Why is it important for modern programming languages to have both pass-by-value operations as well as pass-by-reference features? Why are we not only able to choose one of these two possibilities? It would be helpful if you could explain, in your answer, both the benefits of having both and the reasons why it would be foolish to have only one or the other.

Assignment 16: Iteration Control Structure - Hands on practice Hint: Consider numbers 1 to 10, for each number find the odd multiples. Example, for 1, it should be 1, 3, 5, 7, 9 Objective: Given a real world problem, implement the logic and solve the problem using appropriate constructs (sequen- tial, selection, iteration) using an object oriented program- ming language (Java) for 2, it should be 2, 6, 10, 14, 18 Estimated time: 50 minutes Summary of this assignment: In this assignment, you have learnt the implementation of iteration control structures. Problem Description: Write simple java programs to implement the following prob- lems. 1.Find the sum of first 5 numbers (1 to 5) using for loop End of document statement 2.Find the product of first 5 numbers (1 to 5) using while loop statement 3. Generate the multiplication table of 10 upto multiple value 500 4.Calculate the square of first 5 numbers (1 to 5) using do..while statement 5.Find the odd multiples among the first 10…