Question

string clean_word(const string&)

Take in a string. Create a new string where you remove any non-alphabetic characters and lower case everything. Return that new string.

vector split(const string &s, char delim=' ')

Take in the string, return a vector where the string is split by the parameter character delim. Note the default is only provided in the header, not the definitions.

c++ code for both functions

Answer 1

string clean_word(const string& myString){
  
   //a new string
   string newString = "";
  
   //looping over the given string
   for(int i=0;i<myString.length();i++){
      
       //if the character is not a lower case letter and
       //an alphabet , then add it to myString
       if(isalpha(myString[i])&&isupper(myString[i])){
           newString = newString + myString[i];
       }
      
   }
  
   //returning the string
   return newString;
}

vector<string> split(const string &s,char delim=' '){
  
   vector<string> myVector;
   string temp = "";
  
   for(int i=0;i<s.length();i++){
      
       //if the character is not delim, then add it to
       //to temporary (temp) string
       if(s[i]!=delim){
           temp = temp + s[i];
       }
      
       //If the character is delim, then add the string
       //obtained till now to vector and reassign empty string
       //to temp
       else{
           myVector.push_back(temp);
           temp = "";
       }
      
   }
  
   //now add the last part of the string that is between
   //the last delimiter and the end of the string
   //to the vector
   myVector.push_back(temp);
  
   //return the vector
   return myVector;
}

I have used the above functions with my own driver code and the output looks like the following.

Please appreciate the solution if you find it helpful.

If you have any doubts in the solution, please ask me in the comment section.