#ifndef PB_DS_BINARY_HEAP_HPP
#define PB_DS_BINARY_HEAP_HPP
#include <queue>
#include <algorithm>
#include <ext/pb_ds/detail/cond_dealtor.hpp>
#include <ext/pb_ds/detail/cond_dealtor.hpp>
#include <ext/pb_ds/detail/type_utils.hpp>
#include <ext/pb_ds/detail/binary_heap_/entry_cmp.hpp>
#include <ext/pb_ds/detail/binary_heap_/entry_pred.hpp>
#include <ext/pb_ds/detail/binary_heap_/resize_policy.hpp>
#include <ext/pb_ds/detail/binary_heap_/const_point_iterator.hpp>
#include <ext/pb_ds/detail/binary_heap_/const_iterator.hpp>
#ifdef PB_DS_BINARY_HEAP_TRACE_
#include <iostream>
#endif
#include <ext/pb_ds/detail/type_utils.hpp>
#include <debug/debug.h>
namespace pb_ds
{
namespace detail
{
#define PB_DS_CLASS_T_DEC \
template<typename Value_Type, class Cmp_Fn, class Allocator>
#define PB_DS_CLASS_C_DEC \
binary_heap_<Value_Type, Cmp_Fn, Allocator>
#define PB_DS_ENTRY_CMP_DEC \
entry_cmp<Value_Type, Cmp_Fn, is_simple<Value_Type>::value, Allocator>::type
#define PB_DS_RESIZE_POLICY_DEC \
resize_policy<typename Allocator::size_type>
template<typename Value_Type, class Cmp_Fn, class Allocator>
class binary_heap_ : public PB_DS_ENTRY_CMP_DEC,
public PB_DS_RESIZE_POLICY_DEC
{
private:
enum
{
simple_value = is_simple<Value_Type>::value
};
typedef integral_constant<int, simple_value> no_throw_copies_t;
typedef
typename Allocator::template rebind<
Value_Type>::other
value_allocator;
typedef
typename __conditional_type<
simple_value,
Value_Type,
typename value_allocator::pointer>::__type
entry;
typedef
typename Allocator::template rebind<
entry>::other
entry_allocator;
typedef typename entry_allocator::pointer entry_pointer;
typedef typename PB_DS_ENTRY_CMP_DEC entry_cmp;
typedef PB_DS_RESIZE_POLICY_DEC resize_policy;
typedef
cond_dealtor<
Value_Type,
Allocator>
cond_dealtor_t;
public:
typedef typename Allocator::size_type size_type;
typedef typename Allocator::difference_type difference_type;
typedef Value_Type value_type;
typedef
typename Allocator::template rebind<
value_type>::other::pointer
pointer;
typedef
typename Allocator::template rebind<
value_type>::other::const_pointer
const_pointer;
typedef
typename Allocator::template rebind<
value_type>::other::reference
reference;
typedef
typename Allocator::template rebind<
value_type>::other::const_reference
const_reference;
typedef
binary_heap_const_point_iterator_<
value_type,
entry,
simple_value,
Allocator>
const_point_iterator;
typedef const_point_iterator point_iterator;
typedef
binary_heap_const_iterator_<
value_type,
entry,
simple_value,
Allocator>
const_iterator;
typedef const_iterator iterator;
typedef Cmp_Fn cmp_fn;
typedef Allocator allocator;
public:
binary_heap_();
binary_heap_(const Cmp_Fn& r_cmp_fn);
binary_heap_(const PB_DS_CLASS_C_DEC& other);
void
swap(PB_DS_CLASS_C_DEC& other);
~binary_heap_();
inline bool
empty() const;
inline size_type
size() const;
inline size_type
max_size() const;
Cmp_Fn&
get_cmp_fn();
const Cmp_Fn&
get_cmp_fn() const;
inline point_iterator
push(const_reference r_val);
void
modify(point_iterator it, const_reference r_new_val);
inline const_reference
top() const;
inline void
pop();
inline void
erase(point_iterator it);
template<typename Pred>
typename PB_DS_CLASS_C_DEC::size_type
erase_if(Pred pred);
inline static void
erase_at(entry_pointer a_entries, size_type size, false_type);
inline static void
erase_at(entry_pointer a_entries, size_type size, true_type);
inline iterator
begin();
inline const_iterator
begin() const;
inline iterator
end();
inline const_iterator
end() const;
void
clear();
template<typename Pred>
void
split(Pred pred, PB_DS_CLASS_C_DEC& other);
void
join(PB_DS_CLASS_C_DEC& other);
#ifdef PB_DS_BINARY_HEAP_TRACE_
void
trace() const;
#endif
protected:
template<typename It>
void
copy_from_range(It first_it, It last_it);
private:
void
value_swap(PB_DS_CLASS_C_DEC& other);
inline void
insert_value(const_reference r_val, false_type);
inline void
insert_value(value_type val, true_type);
inline void
insert_entry(entry e);
inline void
resize_for_insert_if_needed();
inline void
swap_value_imp(entry_pointer p_e, value_type new_val, true_type);
inline void
swap_value_imp(entry_pointer p_e, const_reference r_new_val, false_type);
void
fix(entry_pointer p_e);
inline const_reference
top_imp(true_type) const;
inline const_reference
top_imp(false_type) const;
inline static size_type
left_child(size_type i);
inline static size_type
right_child(size_type i);
inline static size_type
parent(size_type i);
inline void
resize_for_erase_if_needed();
template<typename Pred>
size_type
partition(Pred pred);
#ifdef _GLIBCXX_DEBUG
void
assert_valid() const;
#endif
#ifdef PB_DS_BINARY_HEAP_TRACE_
void
trace_entry(const entry& r_e, false_type) const;
void
trace_entry(const entry& r_e, true_type) const;
#endif
private:
static entry_allocator s_entry_allocator;
static value_allocator s_value_allocator;
static no_throw_copies_t s_no_throw_copies_ind;
size_type m_size;
size_type m_actual_size;
entry_pointer m_a_entries;
};
#include <ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp>
#include <ext/pb_ds/detail/binary_heap_/constructors_destructor_fn_imps.hpp>
#include <ext/pb_ds/detail/binary_heap_/iterators_fn_imps.hpp>
#include <ext/pb_ds/detail/binary_heap_/debug_fn_imps.hpp>
#include <ext/pb_ds/detail/binary_heap_/trace_fn_imps.hpp>
#include <ext/pb_ds/detail/binary_heap_/erase_fn_imps.hpp>
#include <ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp>
#include <ext/pb_ds/detail/binary_heap_/find_fn_imps.hpp>
#include <ext/pb_ds/detail/binary_heap_/split_join_fn_imps.hpp>
#include <ext/pb_ds/detail/binary_heap_/policy_access_fn_imps.hpp>
#undef PB_DS_CLASS_C_DEC
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_ENTRY_CMP_DEC
#undef PB_DS_RESIZE_POLICY_DEC
} }
#endif