// C++ program to demonstrate the
// ordered set in GNU C++
#include <iostream>
using namespace std;
 
// Header files, namespaces,
// macros as defined above
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
 
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
 
int main() {
	// your code goes here
	ordered_set t;
	return 0;
}
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