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#include "ds/pbds.hpp"#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/tag_and_trait.hpp>
using namespace __gnu_pbds;
// お手軽だけど、座圧+BITとかの方がかなり速いので注意!
template <typename KEY>
using pbds_set = tree<KEY, null_type, less<KEY>, rb_tree_tag,
tree_order_statistics_node_update>;#line 1 "ds/pbds.hpp"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/tag_and_trait.hpp>
using namespace __gnu_pbds;
// お手軽だけど、座圧+BITとかの方がかなり速いので注意!
template <typename KEY>
using pbds_set = tree<KEY, null_type, less<KEY>, rb_tree_tag,
tree_order_statistics_node_update>;