In the "eval_expr.cpp" file, you will implement the conversion algorithm in the following function. * @brief Convert an infix expression to an equivalent postfix expression @param infix_expr The input expression in the infix format. * @return the converted postfix expression. If the input infix expression is invalid, return an emp */ String convertInfixToPostfix (string infix_expr) Then implement a function to evaluate infix expressions by using the convertInfixToPostfix and evalPostfixExpr functions. bool evalInfixExpr(string infix_expr, float& result);

MUST BE IN C AND UTILIZE USER DEFINED FUNCTION. THANK YOU UDF should take an argument, which needs to be an array, and return the average to the mainfunction. The average should be displayed by a printf() within the main (). Create a script that will find the average of {-100, 97, 83, 21, -50, 20, 101, 30}, {12, 21, 57, 28, 108,30}, {10,20,30,40, 50, 60, 70, 90, 100, -110, -120, -130,-140}, or ANY SET OF NUMBERS![THE USER SHOULD BE PROMPTED TO TYPE IN THE SIZE OF ARRAY. THEN, EACH FOLLOWING NUMBERTHAT USER TYPES IN SHOULD BE STORED IN THIS ARRAY. Whole computation must be done by accessingelements in the array.)

Problem D. Find URLsHTML is a language for representing documents designed to be displayed by a web browser. In many browsers, you can see the HTML source code by right-clicking somewhere on the page and clicking “View Page Source”. If you try this on a web page with links to other websites, you’ll notice that the URL of the link is usually formatted in the following way: href="https://some.website.com/subfolder/more_stuff.txt" Write a function find_url(html) that takes in a string of html text that contains exactly one external link URL formatted as above, and returns just the URL string (in the above example, that would be https://some.website.com/subfolder/more_stuff.txt). You can assume that the only place in the string where the substring href=" occurs is right before the URL, and that the next quotation mark after that point denotes the end of the URL. Hints: ●  The .find method and string slicing will likely make this easier. ●  Remember that in order to use a double quote…

This is the program i have been given. I have to change it to meet the following criteria but can only change the body of the show_flashcard function       # IMPORTANT# Q2 (a)(iii) Make changes only to# -- the docstring for the program as a whole.# -- the docstring of the show_flashcard() function# -- the body of the show_flashcard() function. def show_flashcard():    """ Show the user a random key and ask them        to define it. Show the definition        when the user presses return.        """    random_key = choice(list(word_list))    print('Define: ', random_key)    input('Press return to see the definition')    print(word_list[random_key])     # Set up the word_list word_list = {'black':'noir',            'red':'rouge',            'yellow':'jaune',            'orange':'orange',            'white':'blanc',            'green':'vert'} # The interactive loop exit = Falsewhile not exit:    user_input = input('Enter s to show a flashcard and q to quit: ')    if user_input == 'q':…