Задача по векторам №2

#include <iostream>
#include <string>
#include <vector>
using namespace std;
 
template <class T>
void show (vector<T> & x)
{
    for (vector<T>::iterator it = x.begin() ; it != x.end() ; ++it)
                cout<<" "<<*it;
}
 
void main()
{
    setlocale(LC_ALL, "rus");
 
    string words;
    string word;
    vector<string> some_text;
    vector<string> s_t;
    
    cout << "Введите текст. По окончанию ввода, нажмите - ctrl + Z" << endl;
 
    while (getline(cin, words))
    {
        some_text.push_back(words);
        word = words;
    }
 
    for (string::size_type ix = 0; ix != word.size(); ++ix)
    {
        word[ix] = toupper(word[ix]);
    }
 
    s_t.push_back(word);
    cout << endl;
 
    show(some_text);
    cout << endl;
    cout << endl;
    show(s_t);
    cout << endl;
}

for (vector<T>::iterator it = x.begin(); it != x.end(); ) {
   for (size_t i = 0; (i != 8) && (it != x.end()); ++i, ++it) {
      cout << *it << ' ';
   }
   cout << endl;
}

template<typename T>
void show(vector<T> const& x) {
   for (typename vector<T>::const_iterator it = x.begin(); it != x.end(); ) {
      for (size_t i = 0; (i != 8) && (it != x.end()); ++i, ++it) {
         cout << *it << ' ';
      }
      cout << endl;
   }
}

for (string some_word; cin >> some_word; ) {
   some_words.push_back(some_word);
}
 
for (size_t i = 0; i != some_words.size(); ++i) {
   for (size_t j = 0; j != some_words[i].size(); ++j) {
      some_words[i][j] = ::toupper(some_words[i][j]);
   }
}

#include <iterator>
#include <algorithm>
 
// ...
 
vector<string> some_words((istream_iterator<string>(cin)), istream_iterator<string>());
 
for (size_t i = 0; i != some_words.size(); ++i) {
   transform(some_words[i].begin(), some_words[i].end(), some_words[i].begin(), ::toupper);
}

::std::vector<::std::string> some_words;

#include <cctype>
#include <string>
#include <vector>
#include <iostream>
#include <algorithm>
 
void up_case(std::string& s)
{
    std::transform(s.begin(), s.end(),
        s.begin(), ::toupper);
}
 
void print(std::vector<std::string>& v, int items_per_line)
{
    int n = 0;        
    for(std::size_t i = 0; i < v.size(); ++i)
    {        
        if(n == items_per_line)
        {
            n = 0;
            std::cout << '\n';
        }
                    
        std::cout << v[i] << ' ';
        ++n;
    }
 
    std::cout << '\n';
}
 
int main() 
{    
    std::vector<std::string> v;
    
    for(std::string s;
        std::cin >> s; )
    {
        v.push_back(s);
        up_case(v.back());
    }
    
    const int items_per_line = 8;    
    print(v, items_per_line);
}