#include <iostream>
#include <algorithm>
#include <vector>
 
using namespace std;
 
struct properties{
    int index;    // student's index number
    string name;  // name of student
    int points;   // points of exam
 
};
 
 bool less_than(properties const& first, properties const& second)     
    {  
    	return first.points < second.points;    
    }  
 
 
int main()
{
	vector<properties> students;
	sort(students.begin(), students.end(), less_than);
	return 0;
 
}

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