You may use any of the libraries that we have considered in this course (either algs4.jar or java.util versions). Here is an illustrative example of the expected format: // the missing string to return // Theta(k) memory StringBuilder missing;

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A: here is the program that reads a text file and creates a list of words occurring in this file.

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A: Here's the solution to the tic-tac-toe problem in Java:

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A: Please find the answer below:

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A: According to the Question below the Solution:   Output:

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A: Python code: def main():    string1 = input("Enter the first string: ")    string2 = input("Enter…

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A: Answer is given below-

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A: Here is the c++ code: See below step

Q: A contact list is a place where you can store a specific contact with other associated information…

A: The below given C++ program will obey the following rubrics:Importing essential header…

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A: If you want to run the code you can copy paste the code on onlinegdb compiler for java. Or you can…

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A: Here we write answer of all the 6 Question marks:…

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A: Required language is C++:

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A: //Coding import java.util.Scanner;public class Main{//here the main program starts/**/public static…

Q: A contact list is a place where you can store a specific contact with other associated information…

A: C++ programming language : The middle-level programming language C++ was created by Bjarne…

Q: A contact list is a place where you can store a specific contact with other associated information…

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A: In step 2, you will the python code.In step 3, you can see the sample output.

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A: The Python code is given below with code and output screenshot Happy to help you ?

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A: Below is the complete solution with explanation in detail for the given question in Java Programming…

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A: Answer is given below .

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A: I have provided solution in step2.

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A: Answer

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A: The complete code is below with output .

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A: Correct Answer : Option ( B ): return ret;

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A: i will give this question answer in next step.

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Q: A contact list is a place where you can store a specific contact with other associated information…

A: #include <iostream> using namespace std; struct ContactInfo{     string name;     string…