Assume that R and S are both regular expressions, then which one(s) would NOT be true. R + S is a regular expression * R+S is a regular expression * R.S is a regular expression ☐ (R+S)* is a regular expression. None
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- U kw 100% thn Answer else downvoted Write regular expression for the language over (0, 1): the set of all strings that contain 100.If Σ = {0, 1}, write a regular expression whose language is all strings must contain 1011 as a substring.Exercise 2(strcat_ba_test): Complete the following function, strcat_ba(a, b), so that given two strings a and b, it returns the concatenation of b followed by a(pay attention to the order in these instructions!) Python programming
- For each function, describe what it actually does when called with a string argument. If it does not correctly check for lowercase letters, give an example argument that produces incorrect results, and describe why the result is incorrect. # 1 def any_lowercase1(s): for c in s: if c.islower(): return True else: return False # 2 def any_lowercase2(s): for c in s: if 'c'.islower(): return 'True' else: return 'False' # 3 def any_lowercase3(s): for c in s: flag = c.islower() return flag # 4 def any_lowercase4(s): flag = False for c in s: flag = flag or c.islower() return flag # 5 def any_lowercase5(s): for c in s: if not c.islower(): return False return True The code and its output must be explained technically whenever asked. The explanation can be provided before or after the code, or in the form of code comments within…Write T if the sentence is true and F if the sentence is false and correct the false sentence. Answer only 5 of the following The sin() function is a scalar function.c++: How do I set a boolean hasDigit to true if string userInput contains a digit? bool hasDigit;string userInput; hasDigit = false;cin >> userInput; if((isdigit(passCode))) //***{hasDigit = true; } //error***: no matching function for call to ‘isdigit(std::string&)’
- If statements a. Always have a then section which evaluates if true b. can skip the else segment c. cannot call functions within the condition or the segments d. a & b e. a & b & c(Practice) For the following correct algebraic expressions and corresponding incorrect C++ expressions, find the errors and write corrected C++ expressions: Algebra C++ Expression a.(2)(3)+(4)(5)(2)(3)+(4)(5) b. 6+1826+18/2 c. 4.512.23.1S4.5/12.23.1 d. 4.6(3.0+14.9)4.6(3.0+14.9) e. (12.1+18.9)(15.33.8)(12.1+18.9)(15.33.8)The program in the Programming Example: Fibonacci Number does not check whether the first number entered by the user is less than or equal to the second number and whether both the numbers are non-negative. Also, the program does not check whether the user entered a valid value for the position of the desired number in the Fibonacci sequence. Rewrite that program so that it checks for these things.
- q → r r Therefore, q. -- This is an example of a _______ statement.In C# Given a string, create a function to reverse the case. All lower-cased letters should be upper-cased, and vice versa. Examples ReverseCase("Happy Birthday") -> "hAPPY bIRTHDAY" ReverseCase("MANY THANKS") -> "many thanks" ReverseCase("sPoNtAeEoUs") -> "SpOnTaNeOuS"c++ with comment