#include <iostream>
#include <set>
#include <vector>

using namespace std ;
/*
  Use a single loop to determine if any 2 elements
  in the vector equal a sum value

*/
//Assume vector can only contain positive numbers
bool doesSumExistFor2Elements( vector<int>& v1 , int sum )
{


	return false ;
}


int main()
{
	//Assume vector can only contain positive numbers
	vector<int> v1 = { 3, 1, 5, 7 , 4 , 8 };

    cout << doesSumExistFor2Elements( v1, 10 ) << endl ;
    cout << doesSumExistFor2Elements( v1, 19 ) << endl ;

    vector<int> v2 = { 3, 1, 5, 7 , 4 , 2 };
    cout << doesSumExistFor2Elements( v2, 3 ) << endl  ;
    cout << doesSumExistFor2Elements( v2, 12 ) << endl  ;

    return 0;
}