C++ Exercises: Check whether a given string starts with "F" or ends with "B"

C++ Basic Algorithm: Exercise-43 with Solution

Check String Starts with 'F' or Ends with 'B'

Write a C++ program to check whether a given string starts with "F" or ends with "B". If the string starts with "F" return "Fizz" and return "Buzz" if it ends with "B" If the string starts with "F" and ends with "B" return "FizzBuzz". In other cases return the original string.

Sample Solution:

C++ Code :

#include <iostream>
using namespace std;

// Function to process a string according to specific conditions
string test(string str)
{
    // Check if the string starts with 'F' and ends with 'B'
    if ((str.substr(0, 1) == "F") && (str.substr(str.length() - 1, 1) == "B"))
    {
        return "FizzBuzz"; // Return "FizzBuzz" if conditions are met
    }
    // Check if the string starts with 'F'
    else if (str.substr(0, 1) == "F")
    {
        return "Fizz"; // Return "Fizz" if the string starts with 'F'
    }
    // Check if the string ends with 'B'
    else if (str.substr(str.length() - 1, 1) == "B")
    {
        return "Buzz"; // Return "Buzz" if the string ends with 'B'
    }
    else
    {
        return str; // Return the original string if none of the conditions are met
    }
}

int main() 
{
    // Test cases for the test function
    cout << test("FB") << endl;     // Output: FizzBuzz (starts with 'F' and ends with 'B')
    cout << test("Fsafs") << endl;  // Output: Fizz (starts with 'F')
    cout << test("AuzzB") << endl;  // Output: Buzz (ends with 'B')
    cout << test("founder") << endl;// Output: founder (no condition met)
    return 0;      
}

Sample Output:

FizzBuzz
Fizz
Buzz
founder

Visual Presentation:

Flowchart:

C++ Code Editor:

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