Question

How to change every letter in a string with the letter following it in the alphabet using C++

Answer 1

#include <iostream>
  
std::string changeLettersWithFollowingLetter(std::string str) {
    std::string result;
      
    for (char ch : str) {
        int asciiCode = static_cast<int>(ch) + 1;
        if ((asciiCode >= 97 && asciiCode <= 122) || (asciiCode >= 65 && asciiCode <= 90)) {
            result += static_cast<char>(asciiCode);
        } else {
            result += ch;
        }
    }
      
    return result;
}
  
int main() {
    std::cout << changeLettersWithFollowingLetter("8a Frk") << std::endl;
}
  
  
  
/*
run:
     
8b Gsl
     
*/

 

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