Can I please get help with c++ code I will up vote thank you !!!

rou are given a copy of "lexth from Programming Assignment 1, and a file called "tokenstisting,cpp" as a driver program. DO NOT CHANGE neither "lex.h" nor "tokenstisting cpp ". Your implementation should include trie following in another file, called "RAS cpp : - The function Lexitem id_or_kw(const string & lexeme, int linenum): id _ or _w of function accepts a reference to a string of a lexeme and a line number and returns a Lexitem object. it searches for the foxeme in a directory th maps a string value of a keyword to its corresponding Token value, and it retums a Lextem object containing the keyword Token if it is found. Otherwise. returns a Lexitem object containing a token for one of the possible types of identifiers (ie., IDENT, SIDENT, or NIDENT). - The overloaded operator function operator for Lextem. ostream\& operator{ "COMMA", COMMA }, { "LPAREN", LPAREN }, { "RPAREN", RPAREN }, { "LBRACES", LBRACES \}, { "RBRACES", RBRACES }, { "SEMICOL", SEMICOL }, { "ERR",ERR }, { "DONE", DONE }, Token tt; string tokstr, lexeme, str2; char ch; int i, line, strlen; in tokstr ; if ( in ) \{ \} return in; auto ttitr = StrToTok find(tokstr); //cout tokstr end L; if(ttitr 1=str ToTok.end ()) \{ tt=ttitr second; if (tt= IDENT ) \{ in lexeme line; tok = id_or_kw(lexeme, line); \} else if (tt == ICONST tt== RCONST ) \{ in lexeme line; LexItem item(tt, lexeme, line); tok = item; \} else if (tt= SCONST ) \}