There is a parse element that can act as both a statement or as an expression. Which one is it? Why is it able to act as both?
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- An r-value reference is what? Why may it be helpful?Recursive Syntax The recursive structure i.e of natural language like English can be expressed in syntax rules written in the format known as BNF (Bachus-Naur Form). While BNF is ordinarily used as a guide for parsing (that is, determining whether and how a given string follows the syntax rules), An example of this can be found in the sample program SimpleRandomSentences. You should write a similar program that implements the following rules:<sentence> ::= <simple_sentence> [ <conjunction> <sentence> ]<simple_sentence> ::= <noun_phrase> <verb_phrase><noun_phrase> ::= <proper_noun> |<determiner> [ <adjective> ]. <common_noun> [ who <verb_phrase> ]<verb_phrase> ::= <intransitive_verb> |<transitive_verb> <noun_phrase> |is <adjective> |believes that <simple_sentence><conjunction> ::= and | or | but | because<proper_noun> ::= Fred | Jane | Richard Nixon | Miss…In programming language c Write the difference between structure and arrays. Also discuss a scenario where using a structure will be more appropriate with explanation.
- subject : Discrete Structures Replace all the 0 (Zero) digits in your ID by 4. Example: If your ID is 38104680, it becomes 38144684 Take the first 6 digits and substitute them in this expression (( A + B) / C) * ((D-E)/F)-2) according to the following table; Letter Replace by Digit Example Digit A 1st 1 B 2nd 2 C 3rd 4 D 4th 6 E 5th 8 F 6th 2 After substitution your expression will be similar to this (( 1 + 2) / 4) * ((6-8)/2)-2). 1.Draw a rooted tree that represents your expression. 2.What is the prefix form of this expression. 3.What is the value of the prefix expression obtained in step 2 above?How can the repeated calls to a recursion function be managed? What kind of control structure is used?How does a recursion function's repeated calls to itself be controlled? Which control structure is employed?
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