How will this cycle ever end

Opening again Edit: How to end this

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

using namespace std;

int main()
{
    vector<string> s;
    string word;

    while(cin >> word)
        {
            s.push_back(word);
        }



        for(auto i =0; i < s.size(); i++)
        {
            for(auto &c : s[i])
            c = toupper(c);
        }

        int j=1;
        for(auto c : s)
        {
              cout << c << " ";
              if(j%8==0)
              {
                  cout << "\n";
              }
              j++;
        }  
}
  • Another method can be used as put word! = "End" or something similar in a while loop, but it will create an additional word that I don’t want.

  • I don’t understand why, when I give a space between two words like: Hello, my name is james (in the input), then why C ++ treats it as different lines and strors in different blocks of the vector. I am new to C ++ programming, as you can see, but the old C programmer, not very old 3 months older, is a college guy.


This is an example from the 5th edition of the C ++ book. My question is how the while loop ends, I tried everything like enter, by entering 0 in this book there are many examples.

int main()
{
      vector<unsigned> scores(11, 0);          
      unsigned grade;
      while (cin >> grade)
      { 
            if (grade <= 100) // handle only valid grades
            ++scores[grade/10];
      }

      for(auto c : scores)
      {
           cout << c << endl;
      }
}
+4
2

cin >> grade ( ), . , (EOF) . , enter . , . ( ) EOF.

+5

(cin >> end) : cin. , cin >> x >> y. , , , () cin (, ), . , cin false, .

, Ctrl-D Ctrl-Z , cin " ".

+2

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