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#include "cp-algo/data_structures/treap/common.hpp"
#ifndef CP_ALGO_DATA_STRUCTURES_TREAP_COMMON_HPP
#define CP_ALGO_DATA_STRUCTURES_TREAP_COMMON_HPP
#define _safe(t, op) (t ? t->op : typename std::remove_reference_t<decltype(t->op)>())
#endif // CP_ALGO_DATA_STRUCTURES_TREAP_COMMON_HPP
#line 1 "cp-algo/data_structures/treap/common.hpp"
#define _safe(t, op) (t ? t->op : typename std::remove_reference_t<decltype(t->op)>())