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| #include <algorithm>
#include <iostream>
#include <set>
#include <vector>
///////////////////////////////////////////////////////////////////////////////
class T_official;
///////////////////////////////////////////////////////////////////////////////
typedef T_official * T_off_tree;
typedef std::vector < T_off_tree > T_off_trees;
typedef int T_id;
typedef std::set < T_id > T_ids;
///////////////////////////////////////////////////////////////////////////////
struct T_resolution
{
//---------------------------------------------------------------------
int price_;
T_ids actors_ids_;
int full_price_ = {};
//---------------------------------------------------------------------
T_resolution
(
int price,
T_ids const & actors_ids
)
:
price_ ( price ),
actors_ids_ ( actors_ids )
{}
//---------------------------------------------------------------------
};
///////////////////////////////////////////////////////////////////////////////
typedef std::vector < T_resolution > T_resolutions;
///////////////////////////////////////////////////////////////////////////////
class T_official
{
//-------------------------------------------------------------------------
int id_;
T_resolutions resolutions_;
T_off_trees sub_trees_;
T_resolutions::iterator res_min_it_ = resolutions_.end();
int price_min_ = {};
bool price_min_is_valid_ = {};
//-------------------------------------------------------------------------
public:
//-------------------------------------------------------------------------
T_official
(
int id,
T_resolutions const & resolutions
)
:
id_ ( id ),
resolutions_ ( resolutions )
{}
//-------------------------------------------------------------------------
void print_price_min_and_id_of_actors_of_price_min()
{
std::cout << get_price_min()
<< std::endl;
print_id_and_id_of_price_min_actors();
std::cout << std::endl;
}
//-------------------------------------------------------------------------
void add_sub( T_off_tree const & off_tree )
{
sub_trees_.emplace_back( off_tree );
}
//-------------------------------------------------------------------------
private:
//-------------------------------------------------------------------------
int get_price_min()
{
set_price_min_if_not_valid();
return price_min_;
}
//-------------------------------------------------------------------------
void set_price_min_if_not_valid()
{
if (
price_min_is_valid_
)
{
return;
}
price_min_is_valid_ = true;
for( auto & res : resolutions_ )
{
set_res_full_price( res );
}
set_res_min_it();
price_min_ = res_min_it_->full_price_;
}
//-------------------------------------------------------------------------
void set_res_full_price( T_resolution & res )
{
res.full_price_ = res.price_;
for( auto actor_id : res.actors_ids_ )
{
auto const & sub_tree_it = get_sub_tree_it( actor_id );
if (
sub_tree_it != sub_trees_.end()
)
{
res.full_price_ += ( *sub_tree_it )->get_price_min();
}
}//for
}
//-------------------------------------------------------------------------
void set_res_min_it()
{
res_min_it_ = std::min_element
(
resolutions_.begin (),
resolutions_.end (),
[] (
auto const & L_res,
auto const & R_res
)
{
return L_res.full_price_
< R_res.full_price_;
}
);
}
//-------------------------------------------------------------------------
void print_id_and_id_of_price_min_actors() const
{
std::cout << id_
<< '\t';
if (
res_min_it_
== resolutions_.end()
)
{
return;
}
for( auto actor_id : res_min_it_->actors_ids_ )
{
auto const & sub_tree_it = get_sub_tree_it( actor_id );
if (
sub_tree_it != sub_trees_.end()
)
{
( *sub_tree_it )->print_id_and_id_of_price_min_actors();
}
}//for
}
//-------------------------------------------------------------------------
T_off_trees::const_iterator get_sub_tree_it( T_id id ) const
{
return std::find_if
(
sub_trees_.begin (),
sub_trees_.end (),
[=] (
auto const & sub_tree
)
{
return sub_tree->id_ == id;
}
);
}
//-------------------------------------------------------------------------
};
///////////////////////////////////////////////////////////////////////////////
int main()
{
T_off_tree off_tree_1 = new T_official
(
1,
{
{ 10, {2, 3} },
{ 20, {3, 4} }
}
);
T_off_tree off_tree_2 = new T_official
(
2,
{
{ 30, {} }
}
);
T_off_tree off_tree_3 = new T_official
(
3,
{
{ 40, {5} },
{ 50, {5, 6} }
}
);
T_off_tree off_tree_4 = new T_official
(
4,
{
{ 50, {} }
}
);
T_off_tree off_tree_5 = new T_official
(
5,
{
{ 60, {} }
}
);
T_off_tree off_tree_6 = new T_official
(
6,
{
{ 70, {} }
}
);
off_tree_3->add_sub( off_tree_5 );
off_tree_3->add_sub( off_tree_6 );
off_tree_1->add_sub( off_tree_2 );
off_tree_1->add_sub( off_tree_3 );
off_tree_1->add_sub( off_tree_4 );
off_tree_1->print_price_min_and_id_of_actors_of_price_min();
} |
(
Сообщение от FirstDeath
