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class triple_type
{
	public:
	int i;
	int j;
	int k;
	triple_type():i(0),j(0),k(0){};
	triple_type(int _i,int _j, int _k):i(_i),j(_j),k(_k){};
 
};
 
struct lttriplet
{
  bool operator()(const triple_type & s1, const triple_type& s2) const
  {
  	if(s1.i<s2.i) return true;
  	if(s1.j<s2.j) return true;
  	if(s1.k<s2.k) return true;
  	return false;
  }
};
 
 
int main()
{
 
	map<triple_type, bool,lttriplet> m;
	map<triple_type, bool,lttriplet>::iterator it;
	list<triple_type> l;
 
	triple_type test(1,3,-1);
 
 
	m[triple_type(1,2,4)]=true;
	m[triple_type(1,3,2)]=true;
	m[triple_type(1,3,5)]=false;
	m[triple_type(1,3,12)]=true;
	m[triple_type(2,5,0)]=true;
 
 
	for(it=m.begin();it!=m.end();++it)
	{
		if(((*it).first.i==test.i)&&((*it).first.j==test.j))cout<<(*it).first.k<<endl;
	}
 
	std::cout << "Hello world!" << std::endl;
	return 0;
} | 
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