Question

How to sort the words in a string in C++

Answer 1

#include <iostream>
#include <sstream>
#include <vector>
#include <algorithm>

std::string sort_the_words_in_a_string(std::string s) {
    std::vector<std::string> arr;

    std::istringstream iss(s);
    std::string token;
    while (iss >> token) {
        arr.push_back(token);
    }

    std::sort(arr.begin(), arr.end());

    s.clear();
    for (const auto& str : arr) {
        s += str + " ";
    }
    
    if (!s.empty()) {
        s.pop_back(); // Remove the last space
    }
    
    return s;
}

int main() {
    std::string s = "php c java c++ python c#";
    
    s = sort_the_words_in_a_string(s);
    
    std::cout << s << std::endl;
}

  
  
            
/*
run:
         
c c# c++ java php python
      
*/

 

70+ SQL courses for beginners and professionals