#include <string>
#include <vector>
#include <iostream>

std::vector<std::string> split(std::string input, std::string delimiter = " "){
    ulong pos = 0;
    std::vector<std::string> result;
    while((pos = input.find(delimiter)) != std::string::npos){
        result.push_back(input.substr(0, pos));
        input.erase(0, pos + delimiter.length());
    }
    // Append remaining element!
    result.push_back(input);
    return result;
}

std::string reverse_words(std::string str)
{
    std::vector<std::string> words = split(str);
    std::vector<std::string> reversed_words;
    for(auto word: words){
        std::string reversed(word.rbegin(), word.rend());
        reversed_words.push_back(reversed);
    }
    std::string result = reversed_words[0];
    for(int i = 1; i<reversed_words.size(); i++){
        result += " " + reversed_words[i];
    }
    return result;
}

int main(){
    std::string mystring = "This is just an example string to check splitting.";
    std::cout << reverse_words(mystring);
}