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update: enhance group cases build

legacy
Dnomd343 2 years ago
parent
e7fb997fbe
commit
cbc88e907b
3 changed files with 41 additions and 128 deletions
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  1. 113
      src/klotski_core/group/build_cases.cc
  2. 16
      src/klotski_core/group/group.h
  3. 40
      src/klotski_core/group/seeds.cc

113
src/klotski_core/group/build_cases.cc
View File

@ -7,17 +7,25 @@
#include "absl/container/flat_hash_map.h"
#include "absl/container/btree_set.h"
#include "type_id.h"
#include "group_seeds.h"
namespace klotski {
using Common::check_range;
using Common::range_reverse;
std::vector<RawCode> Group::group_cases(const CommonCode &common_code) {
return group_cases(common_code.to_raw_code());
}
std::vector<CommonCode> Group::build_group(const GroupId &group_id) {
auto cases = group_cases(group_seed(group_id));
return {cases.begin(), cases.end()};
}
std::vector<CommonCode> Group::all_cases(const TypeId &type_id) {
auto tmp = type_id.block_num();
std::vector<uint32_t> ranges; // basic ranges of type_id
ranges.reserve(TYPE_ID_SIZE[type_id.unwrap()]); // over-allocation
auto tmp = type_id.block_num();
BasicRanges::generate(ranges, { // generate target ranges
.n1 = 16 - tmp.n_1x1 - (tmp.n_1x2 + tmp.n_2x1) * 2, /// space -> 00
.n2 = tmp.n_1x2, /// 1x2 -> 01
@ -47,10 +55,6 @@ std::vector<CommonCode> Group::all_cases(const TypeId &type_id) {
return all_cases;
}
//absl::flat_hash_map<uint64_t, uint64_t> expansion(const RawCode &entry) {
//
//}
std::vector<RawCode> Group::group_cases(const RawCode &raw_code) {
std::queue<uint64_t> cache;
absl::flat_hash_map<uint64_t, uint64_t> cases; // <code, mask>
@ -74,7 +78,7 @@ std::vector<RawCode> Group::group_cases(const RawCode &raw_code) {
cache.pop(); // case dequeue
}
auto result = std::vector<RawCode>();
std::vector<RawCode> result;
result.reserve(cases.size());
for (auto &&tmp : cases) { // export group cases
result.emplace_back(RawCode::unsafe_create(tmp.first));
@ -82,87 +86,6 @@ std::vector<RawCode> Group::group_cases(const RawCode &raw_code) {
return result;
}
std::vector<RawCode> Group::group_cases(const CommonCode &common_code) {
return group_cases(RawCode::from_common_code(common_code));
}
CommonCode Group::group_seed(const RawCode &raw_code) {
// auto t = expansion(raw_code);
//
// auto k = t.begin();
//
// auto cmp = [](const std::pair<uint64_t, uint64_t> &p1, const std::pair<uint64_t, uint64_t> &p2) {
// return RawCode::unsafe_create(p1.first).to_common_code() < RawCode::unsafe_create(p2.first).to_common_code();
// };
//
// return std::min_element(t.begin(), t.end(), cmp)->first;
auto cases = group_cases(raw_code);
std::vector<CommonCode> group(cases.begin(), cases.end());
return *std::min_element(group.begin(), group.end());
// std::vector<CommonCode> group;
//
// for (auto &&tmp : expansion(raw_code)) {
// group.emplace_back(RawCode::unsafe_create(tmp.first).to_common_code());
// }
//
// return *std::min_element(group.begin(), group.end());
}
CommonCode Group::group_seed(const CommonCode &common_code) {
return group_seed(common_code.to_raw_code());
}
// TODO: refactor build_group -> using GROUP_SEEDS
std::vector<RawCode> Group::build_group(const GroupId &group_id) {
// auto offset = TYPE_ID_OFFSET[type_id];
//
// std::cout << "size: " << TYPE_ID_GROUP_NUM[type_id] << std::endl;
//
// auto k = GROUP_SEEDS_INDEX[offset + group_id];
//
// std::cout << "tmp index: " << k << std::endl;
//
// auto r = k + offset;
//
// std::cout << "real index: " << r << std::endl;
//
// auto seed = CommonCode(GROUP_SEEDS[r]);
//
// std::cout << "seed: " << seed << std::endl;
//
// std::cout << RawCode(seed) << std::endl;
auto seed = group_seed(group_id);
return group_cases(seed);
// uint32_t group_num = 0;
// auto all_cases = Group::all_cases(type_id); // load all cases of type_id
// std::set<CommonCode> cases(all_cases.begin(), all_cases.end());
//
// while (!cases.empty()) {
// if (group_id == group_num) { // found target group
// auto group = group_cases(cases.begin()->to_raw_code());
// return {group.begin(), group.end()};
// }
// for (auto &&tmp : group_cases(cases.begin()->to_raw_code())) {
// cases.erase(tmp.to_common_code()); // remove from global union
// }
// ++group_num;
// }
return {}; // group_id out of range
}
std::vector<std::vector<CommonCode>> Group::build_groups(const TypeId &type_id) {
auto all_cases = Group::all_cases(type_id);
std::vector<std::vector<CommonCode>> groups;
@ -170,13 +93,13 @@ std::vector<std::vector<CommonCode>> Group::build_groups(const TypeId &type_id)
auto min = std::min_element(all_cases.begin(), all_cases.end()); // search min CommonCode
auto first_group = group_cases(min->to_raw_code()); // expand the first group
groups.emplace_back(first_group.begin(), first_group.end());
if (first_group.size() == all_cases.size()) { // only contains one group
return groups;
if (first_group.size() == all_cases.size()) {
return groups; // only contains one group
}
absl::btree_set<CommonCode> cases(all_cases.begin(), all_cases.end());
for (auto &&tmp : *groups.begin()) {
cases.erase(tmp); // remove elements in first group
cases.erase(tmp); // remove elements from first group
}
while (!cases.empty()) {
auto group = group_cases(cases.begin()->to_raw_code());
@ -186,10 +109,10 @@ std::vector<std::vector<CommonCode>> Group::build_groups(const TypeId &type_id)
}
}
auto compare_func = [](const std::vector<CommonCode> &v1, const std::vector<CommonCode> &v2) {
auto cmp_func = [](const std::vector<CommonCode> &v1, const std::vector<CommonCode> &v2) {
return v1.size() > v2.size(); // sort by vector size
};
std::stable_sort(groups.begin(), groups.end(), compare_func); // using stable sort for ordered index
std::stable_sort(groups.begin(), groups.end(), cmp_func); // using stable sort for ordered index
return groups;
}

16
src/klotski_core/group/group.h
View File

@ -39,8 +39,13 @@ public:
static block_num_t block_num(const CommonCode &common_code) noexcept;
};
inline bool operator==(const TypeId &t1, const TypeId &t2) { return t1.unwrap() == t2.unwrap(); }
inline bool operator!=(const TypeId &t1, const TypeId &t2) { return t1.unwrap() != t2.unwrap(); }
inline bool operator==(const TypeId &t1, const TypeId &t2) {
return t1.unwrap() == t2.unwrap();
}
inline bool operator!=(const TypeId &t1, const TypeId &t2) {
return t1.unwrap() != t2.unwrap();
}
inline bool operator==(const TypeId::block_num_t &b1, const TypeId::block_num_t &b2) {
return (b1.n_1x1 == b2.n_1x1) && (b1.n_1x2 == b2.n_1x2) && (b1.n_2x1 == b2.n_2x1);
@ -79,6 +84,7 @@ class Group {
public:
/// ----------------------------------- group seeds -----------------------------------
/// Get the minimum CommonCode of the specified group.
static CommonCode group_seed(const GroupId &group_id);
static CommonCode group_seed(const RawCode &raw_code);
static CommonCode group_seed(const CommonCode &common_code);
@ -99,7 +105,7 @@ public:
static std::vector<std::vector<CommonCode>> build_groups(const TypeId &type_id);
/// Calculate the specified group using type_id and group_id.
static std::vector<RawCode> build_group(const GroupId &group_id);
static std::vector<CommonCode> build_group(const GroupId &group_id);
/// ----------------------------------- group info ------------------------------------
@ -109,10 +115,8 @@ public:
uint32_t group_index;
};
/// Get group info according to RawCode.
/// Get group info according to specified case.
static group_info_t group_info(const RawCode &raw_code);
/// Get group info according to CommonCode.
static group_info_t group_info(const CommonCode &common_code);
/// Get the CommonCode according to the group info.

40
src/klotski_core/group/seeds.cc
View File

@ -1,3 +1,4 @@
#include <algorithm>
#include "group.h"
#include "type_id.h"
#include "group_seeds.h"
@ -6,40 +7,25 @@
namespace klotski {
CommonCode Group::group_seed(const CommonCode &common_code) {
return group_seed(common_code.to_raw_code());
}
CommonCode Group::group_seed(const RawCode &raw_code) {
auto cases = group_cases(raw_code);
std::vector<CommonCode> group(cases.begin(), cases.end());
return *std::min_element(group.begin(), group.end());
}
CommonCode Group::group_seed(const GroupId &group_id) {
// TODO: check value
auto type_id = group_id.type_id();
auto offset = TYPE_ID_OFFSET[type_id];
std::cout << "size: " << TYPE_ID_GROUP_NUM[type_id] << std::endl;
auto k = GROUP_SEEDS_INDEX[offset + group_id.unwrap()];
std::cout << "tmp index: " << k << std::endl;
auto r = k + offset;
std::cout << "real index: " << r << std::endl;
auto seed = CommonCode(GROUP_SEEDS[r]);
std::cout << "seed: " << seed << std::endl;
std::cout << RawCode(seed) << std::endl;
return seed;
auto offset = TYPE_ID_OFFSET[group_id.type_id()]; // type id offset
auto index = offset + GROUP_SEEDS_INDEX[offset + group_id.unwrap()];
return CommonCode::unsafe_create(GROUP_SEEDS[index]);
}
std::vector<CommonCode> Group::group_seeds(const TypeId &type_id) {
auto offset = GROUP_SEEDS + TYPE_ID_OFFSET[type_id.unwrap()]; // group id offset
auto offset = GROUP_SEEDS + TYPE_ID_OFFSET[type_id.unwrap()]; // type id offset
return {offset, offset + TYPE_ID_GROUP_NUM[type_id.unwrap()]};
}
} // namespace klotski

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