C++ Exercises: Create a new string from a given string. If the first or first two characters is 'a', return the string without those 'a' characters otherwise return the original given string

C++ Basic Algorithm: Exercise-80 with Solution

Remove First/First Two 'a's if Present

Write a C++ program to create a new string from a given string. If the first or first two characters are 'a', return the string without those 'a' characters, otherwise return the original string.

Sample Solution:

C++ Code :

#include <iostream> // Including the input/output stream library
using namespace std; // Using the standard namespace

// Function that removes 'a' from specific positions within the input string
string test(string s1)
{
    // Check if the length of s1 is 1 and the only character is 'a'
    if (s1.length() == 1 && s1.substr(0, 1) == "a")
    {
        s1 = s1.erase(0, 1); // Remove the only character from s1
    }

    // Check if the length of s1 is greater than 1
    if (s1.length() > 1)
    {
        // Check if the second character of s1 is 'a'
        if (s1.substr(1, 1) == "a")
        {
            s1 = s1.erase(1, 1); // Remove the second character from s1
        }

        // Check if the first character of s1 is 'a'
        if (s1.substr(0, 1) == "a")
        {
            s1 = s1.erase(0, 1); // Remove the first character from s1
        }
    }

    return s1; // Return the modified string
}

// Main function
int main() 
{
    cout << test("abcab") << endl;
    cout << test("python") << endl;
    cout << test("aacda") << endl; 
    cout << test("jython") << endl;
    return 0;    // Return statement indicating successful termination of the program
}

Sample Output:

bcab
python
cda
jython

Visual Presentation:

Flowchart:

C++ Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a C++ program to create a new string from a given string without the first and last character if the first or last characters are 'a' otherwise return the original given string.
Next: Write a C++ program to check a given array of integers of length 1 or more and return true if 10 appears as either first or last element in the given array.