Problem Description Write a recursive function that given a string as an input, return the reverse of that string. Input: "Hello World!" Output: "!dlroW olleH&quo…

Question

Problem Description Write a recursive function that given a string as an input, return the reverse of that string. Input: "Hello World!" Output: "!dlroW olleH" What do you need to do? • Complete the program. • Upload the program on the lab website. For each lab you will find a folder in the assignment section of the website. • If you have only one C/C++ file to submit, upload only that file. If you have created multiple files, compress the project folder (zip compression) you created using the CLion IDE and upload the zip file. • Rename the file/folder as follows: YourLastName_YourFirstName_Lab_NoOfTheLab (Example: Asaduzzaman_Muhammad_Lab_1.c or Asaduzzaman_Muhammad_Lab_1.zip). • TA can modify the input to the program.

Answer 1

Answer:Introduction:

In this lab, we have to write a recursive function that takes in a string as input and returns its reverse. This programming task can be accomplished by breaking down the problem into smaller sub-problems using recursion. In this essay, we will discuss the steps required to complete the program and the methods used to ensure that it works correctly.

Body:

To begin with, we need to understand what recursion is. The recursive function is a function that calls itself until a base case is reached. The base case is the condition that stops the function from calling itself recursively. In the given problem, the base case is when the string length becomes zero (0). The program should stop reversing the string once it reaches this base case.

The first step in solving this problem is to declare the function. The function should have a return type of string since we will need to return the reversed string. The function should take in a string as input.

Next, we need to check if the base case is met. If the string is empty, we should return an empty string. Otherwise, we should take the last character of the string and append it to the result of the recursive call of the function with the last character removed from the string.

Here is a sample code snippet to implement this:

```c++

#include

#include

using namespace std;

string reverseString(string s)

{

if (s.length() == 0) //check for the base case

return "";

char lastCharacter = s[s.length()-1]; //get the last character of the string

return lastCharacter + reverseString(s.substr(0, s.length()-1)); //append the last character to the reversed string

}

int main()

{

string s = "Hello World!";

cout << reverseString(s);

return 0;

}

```

The above code will output "!dlroW olleH" as the reversed string.

In conclusion, writing a recursive function to reverse a string involves breaking down the problem into smaller sub-problems. We should continue to call the function on smaller portions of the input string until we reach the base case. By implementing this approach, we can successfully reverse the input string and pass the given lab requirements.

Step-by-step explanation:

i don't need one * and my answer is not complicated*