Hello I am really really struggling with this problem because i don't know how to do this problem or how to answer this question can you please help me answering this problem. I added the text below. question that I need help with: 1.48 Let Σ = {0,1} and let D = {w|w contains an equal number of occurrences of the substrings 01 and 10}. Thus 101 ∈ D because 101 contains a single 01 and a single 10, but 1010 6∈ D because 1010 contains two 10s and one 01. Show that D is a regular language.

Course: Algorithm Project: We will use the defintion of of n-Queens Problem from the chapter Backtracking.  In this project you need to describe Problem and Algorithm and Indicate input and output clearly.  Analyze and prove the time complexity of your algorithm. Implement the algorithm using backtracking(including writing testing case).illustrate key functions with comments indicating: What it does, what each parameter is used for, how it handles errors etc. Indicate the testing scenarios and testing the results in a clear way. Make sure source is commented appropriately and structured well.

Profile the performance of the memoized version of the Fibonacci function defined in Project 6. The function should count the number of recursive calls. State its computational complexity using big-O notation, and justify your answer. The fib function header has been modified to include the counter as the second parameter. Define the Counter class, it should have three methods: __init__, increment, and __str__. When an instance of the Counter class is passed as a parameter, the count property of that instance should be incremented based on the number of recursive calls. The __str__ method should return the count property's value as a string. -----------------------------------------------------------------------------------   """ File: fib.py Project 11.7 Employs memoization to improve the efficiency of recursive Fibonacci. Counts the calls and displays the results. """ class Counter(object):     """Tracks a count."""     # Define the Counter class here. def fib(n, counter = None):…

IN C++. show CODE PLEASE.