#include <iostream>
#include <sstream>
#include <iterator>
#include <algorithm>
#include <string>
#include <vector>
 
 
int main() {
   std::string const str = "Дефрагментатор ntfs под linux,,,,,,,,,,,,,,,,,,,,,,,,,";
 
   std::istringstream iss(str);
   std::vector<std::string> words(
         (std::istream_iterator<std::string>(iss))
        , std::istream_iterator<std::string>());
   auto minmax = std::minmax_element(
          words.begin()
        , words.end()
        , [] (std::string const& lhs, std::string const& rhs) {
             return lhs.length() < rhs.length();
          });
 
   std::cout << "Word with minimum length (" << minmax.first->length()
         << "): " << *minmax.first << std::endl;
   std::cout << "Word with maximum length (" << minmax.second->length()
         << "): " << *minmax.second << std::endl;
}

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