C++ help with Vectors please. Sorted vector is poof....????

[who cares]

Here's my code

#include "stdafx.h"  //don't worry about this line

#include <iostream>

#include <vector>

#include<algorithm>

using namespace std;

 bool myfunction (int i,int j) { return (i<j); }


struct myclass {

  bool operator() (int i,int j) { return (i<j);}

}myobject;

int main()

{

    vector<double> student_marks(05);

    for (vector<double>::size_type i = 0; i < 05; i++)

    {

        cout << "Please enter grades for student #" << i+1 

             << ": " << flush;

        cin >> student_marks[i];

    }

    // ... Do some stuff with the values

    //remove an element

    cout<<"Please enter the position where you would like the value to be removed \n";

    int i;

    cin>>i;

    student_marks.erase (student_marks.begin()+i-1);

    //displaying the vector

    cout << "My Vector Contains the following below:\n";

    for (unsigned i=0; i<student_marks.size(); ++i)

    cout << ' ' << student_marks[i];

    cout << "\n \n";

     cout<<"Sorted Vector contains \n \n";

    //sorting and displaying again

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


  // print out content:

  cout << "My Vector contains:";

    for (unsigned i=0; i<student_marks.size(); ++i)

    cout << ' ' << student_marks[i];

    cout << '\n';

	
	system ("Pause"); 
	
    return 0;

} 

My code compiles just fine. and i have no problem except for when i debug. Everything is fine but the part where it says: sorted vector contains: shows nothing. Any idea/help would be much appreciated. Should I increase the marks from 5 to 20 or something higher???? I'm alil confused what did I do wrong.

Thanks

Here's the initial question:

Create a simple program that manipulates vectors as follows:


Add a value to vector


Remove a value form vector


Display Vector


Sort vector

[vlad from moscow]

If the vector is displayed correctly before the sorting when I do not see any problem.

[who cares]

I'm sorry, I don't think i understand your statement. Perheps if you could rephrase it please.

Are you stating that if vector is displaying correctly then why am i sorting? or the sort is fine if its not showing any numbers??

Thanks

[vlad from moscow]

You display the vector before the sorting. Is it displayed correctly?

[who cares]

yes, the vector displays just fine.

[vlad from moscow]

It means that there is no any problem.

[who cares]

any problem???

Like what could possibly be any problem? any hints....

[vlad from moscow]

It was a typo. I updated my previous post.