feat: group all cases

src/klotski_core/all_cases/all_cases.h

@@ -37,7 +37,7 @@ const uint32_t ALL_CASES_SIZE[16] = {
 
 const uint32_t ALL_CASES_SIZE_SUM = 29334498;
 
-class AllCases : public BasicRanges {
+class AllCases : private BasicRanges {
 public:
     /// Trigger the build process.
     static void build();
@@ -46,7 +46,7 @@ public:
     static Status status() noexcept;
 
     /// Blocking access to constructed data.
-    static const std::vector<uint32_t> (&fetch())[16];
+    static const basic_ranges_t (&fetch())[16];
 
     /// Export all possible common codes.
     static std::vector<CommonCode> release();
@@ -54,9 +54,14 @@ public:
 private:
     static bool available_;
     static std::mutex building_;
-    static std::vector<uint32_t> data_[16];
+    static basic_ranges_t data_[16];
 
     static void build_data();
+
+public:
+    using BasicRanges::NOT_INIT;
+    using BasicRanges::BUILDING;
+    using BasicRanges::AVAILABLE;
 };
 
 } // namespace klotski

src/klotski_core/all_cases/basic_ranges.cc

@@ -10,9 +10,9 @@ using Common::range_reverse;
 /// static variable initialize
 std::mutex BasicRanges::building_;
 bool BasicRanges::available_ = false;
-std::vector<uint32_t> BasicRanges::data_;
+BasicRanges::basic_ranges_t BasicRanges::data_;
 
-const std::vector<uint32_t>& BasicRanges::fetch() {
+const BasicRanges::basic_ranges_t& BasicRanges::fetch() {
     if (status() != AVAILABLE) {
         build();
     }
@@ -50,7 +50,7 @@ void BasicRanges::build_data() {
     for (int n = 0; n <= 7; ++n) // number of 1x2 and 2x1 block -> 0 ~ 7
         for (int n_2x1 = 0; n_2x1 <= n; ++n_2x1) // number of 2x1 block -> 0 ~ n
             for (int n_1x1 = 0; n_1x1 <= (14 - n * 2); ++n_1x1) // number of 1x1 block -> 0 ~ (14 - 2n)
-                generate(generate_t { // generate target ranges
+                generate(data_, generate_t { // generate target ranges
                     .n1 = 16 - n * 2 - n_1x1, /// space -> 00
                     .n2 = n - n_2x1, /// 1x2 -> 01
                     .n3 = n_2x1, /// 2x1 -> 10
@@ -65,7 +65,7 @@ void BasicRanges::build_data() {
 }
 
 /// Generate basic-ranges of specific type.
-void BasicRanges::generate(generate_t info) {
+void BasicRanges::generate(basic_ranges_t &release, generate_t info) {
     constexpr auto MASK_01 = (uint32_t)0b01 << 30;
     constexpr auto MASK_10 = (uint32_t)0b10 << 30;
     constexpr auto MASK_11 = (uint32_t)0b11 << 30;
@@ -88,7 +88,7 @@ void BasicRanges::generate(generate_t info) {
     while (!cache.empty()) { // queue without element -> work complete
         auto current = cache.front();
         if (!current.nx) { // both n1, n2, n3, n4 -> 0
-            data_.emplace_back(current.prefix); // release prefix as basic range
+            release.emplace_back(current.prefix); // release prefix as basic range
             cache.pop();
             continue; // skip current search
         }

src/klotski_core/all_cases/basic_ranges.h

@@ -44,6 +44,7 @@ public:
         BUILDING,
         AVAILABLE,
     };
+    typedef std::vector<uint32_t> basic_ranges_t;
 
     /// Trigger the build process, from `NOT_INIT` to `BUILDING`.
     static void build();
@@ -52,22 +53,26 @@ public:
     static Status status() noexcept;
 
     /// Blocking access to constructed data.
-    static const std::vector<uint32_t>& fetch();
+    static const basic_ranges_t& fetch();
 
 private:
-    struct generate_t {
-        int n1; // number of `00`
-        int n2; // number of `01`
-        int n3; // number of `10`
-        int n4; // number of `11`
-    };
-
     static bool available_;
     static std::mutex building_;
-    static std::vector<uint32_t> data_;
+    static basic_ranges_t data_;
 
     static void build_data();
-    static void generate(generate_t info);
+
+public:
+    /// The number of types of blocks.
+    struct generate_t {
+        int n1; // number of `00` -> space
+        int n2; // number of `01` -> 1x2 block
+        int n3; // number of `10` -> 2x1 block
+        int n4; // number of `11` -> 1x1 block
+    };
+
+    /// Generate all basic-ranges of the specified type.
+    static void generate(basic_ranges_t &release, generate_t info);
 };
 
 } // namespace klotski

src/klotski_core/ffi/tmain.cc

@@ -21,8 +21,55 @@ using klotski::CommonCode;
 
 using klotski::Benchmark;
 
+using klotski::BasicRanges;
+
 void tmain() {
 
+//    std::vector<CommonCode> ok;
+//    for (auto &&c : AllCases::release()) {
+//        if (Group::type_id(c) == 123) {
+//            ok.emplace_back(c);
+//        }
+//    }
+//    std::cout << ok.size() << std::endl;
+
+//    std::cout << Group::all_cases(123).size() << std::endl;
+//    std::vector<CommonCode> err;
+//    auto ret = Group::all_cases(123);
+//    std::cout << ret.size() << std::endl;
+//    err.reserve(ret.size());
+//    for (auto &&r : ret) {
+//        if (Group::type_id(r) != 123) {
+//            std::cout << r << std::endl;
+//        }
+//        err.emplace_back(r);
+//    }
+
+//    uint32_t sum = 0;
+//    for (uint32_t type_id = 0; type_id < 204; ++type_id) {
+//        sum += Group::all_cases(type_id).size();
+//        auto tmp = Group::block_num(type_id);
+//
+//        std::vector<uint32_t> ranges;
+//
+//        BasicRanges::generate(ranges, BasicRanges::generate_t { // generate target ranges
+//            .n1 = 16 - tmp.n_1x1 - (tmp.n_1x2 + tmp.n_2x1) * 2, /// space -> 00
+//            .n2 = tmp.n_1x2, /// 1x2 -> 01
+//            .n3 = tmp.n_2x1, /// 2x1 -> 10
+//            .n4 = tmp.n_1x1, /// 1x1 -> 11
+//        });
+//        sum += ranges.size();
+//    }
+//    std::cout << "sum = " << sum << std::endl;
+
+
+    uint32_t sum = 0;
+    for (uint32_t type_id = 0; type_id < 204; ++type_id) {
+        sum += Group::all_cases(type_id).size();
+    }
+    std::cout << "sum = " << sum << std::endl;
+
+
 //    auto r = Group::block_num(123);
 
 //    std::cout << (int)r.n_1x1 << " " << (int)r.n_1x2 << " " << (int)r.n_2x1 << std::endl;

src/klotski_core/group/CMakeLists.txt

@@ -1,3 +1,3 @@
 cmake_minimum_required(VERSION 3.0)
 
-add_library(group OBJECT group.cc)
+add_library(group OBJECT group.cc block_num.cc)

src/klotski_core/group/block_num.cc

@@ -0,0 +1,73 @@
+#include <group.h>
+#include "common.h"
+#include "type_id.h"
+
+namespace klotski {
+
+using Common::range_reverse;
+
+uint32_t Group::type_id(const RawCode &raw_code) {
+    return type_id(block_num(raw_code));
+}
+
+uint32_t Group::type_id(const CommonCode &common_code) {
+    return type_id(block_num(common_code));
+}
+
+uint32_t Group::type_id(const block_num_t &block_num) {
+    auto n_x2x = block_num.n_1x2 + block_num.n_2x1;
+    auto flag = (n_x2x << 8) | (block_num.n_2x1 << 4) | block_num.n_1x1;
+    return std::lower_bound(TYPE_ID_INDEX, TYPE_ID_INDEX + 204, flag) - TYPE_ID_INDEX;
+}
+
+Group::block_num_t Group::block_num(uint32_t type_id) {
+    auto flag = TYPE_ID_INDEX[type_id];
+    uint8_t n_x2x = flag >> 8;
+    uint8_t n_2x1 = (flag >> 4) & 0b1111;
+    return block_num_t {
+        .n_1x1 = static_cast<uint8_t>(flag & 0b1111),
+        .n_1x2 = static_cast<uint8_t>(n_x2x - n_2x1),
+        .n_2x1 = n_2x1,
+    };
+}
+
+Group::block_num_t Group::block_num(const RawCode &raw_code) {
+    block_num_t result;
+    auto tmp = raw_code.unwrap();
+    for (int addr = 0; addr < 20; ++addr, tmp >>= 3) {
+        switch (tmp & 0b111) {
+            case B_1x1:
+                ++result.n_1x1;
+                continue;
+            case B_1x2:
+                ++result.n_1x2;
+                continue;
+            case B_2x1:
+                ++result.n_2x1;
+                continue;
+        }
+    }
+    return result;
+}
+
+Group::block_num_t Group::block_num(const CommonCode &common_code) {
+    block_num_t result;
+    auto range = range_reverse((uint32_t)common_code.unwrap());
+    for (; range; range >>= 2) {
+        switch (range & 0b11) {
+            case 0b01: /// 1x2 block
+                ++result.n_1x2;
+                continue;
+            case 0b10: /// 2x1 block
+                ++result.n_2x1;
+                continue;
+            case 0b11: /// 1x1 block
+                ++result.n_1x1;
+                continue;
+        }
+    }
+    return result;
+}
+
+} // namespace klotski
+

src/klotski_core/group/group.cc

@@ -2,76 +2,59 @@
 #include <vector>
 #include "core.h"
 #include "group.h"
-#include "common.h"
 #include "absl/container/flat_hash_map.h"
-
-#include "type_id.h"
+#include "common.h"
 
 namespace klotski {
 
-using Common::range_reverse;
+using klotski::AllCases;
+using klotski::BasicRanges;
 
-uint32_t Group::type_id(const RawCode &raw_code) {
-    return type_id(block_num(raw_code));
-}
+using klotski::Common::check_range;
+using klotski::Common::range_reverse;
 
-uint32_t Group::type_id(const CommonCode &common_code) {
-    return type_id(block_num(common_code));
-}
+std::vector<CommonCode> Group::all_cases(uint32_t type_id) {
 
-uint32_t Group::type_id(const block_num_t &block_num) {
-    auto n_x2x = block_num.n_1x2 + block_num.n_2x1;
-    auto flag = (n_x2x << 8) | (block_num.n_2x1 << 4) | block_num.n_1x1;
-    return std::lower_bound(TYPE_ID_INDEX, TYPE_ID_INDEX + 204, flag) - TYPE_ID_INDEX;
-}
+    auto tmp = block_num(type_id);
 
-Group::block_num_t Group::block_num(uint32_t type_id) {
-    auto flag = TYPE_ID_INDEX[type_id];
-    uint8_t n_x2x = flag >> 8;
-    uint8_t n_2x1 = (flag >> 4) & 0b1111;
-    return block_num_t {
-        .n_1x1 = static_cast<uint8_t>(flag & 0b1111),
-        .n_1x2 = static_cast<uint8_t>(n_x2x - n_2x1),
-        .n_2x1 = n_2x1,
-    };
-}
+    std::vector<uint32_t> ranges;
 
-Group::block_num_t Group::block_num(const RawCode &raw_code) {
-    block_num_t result;
-    auto tmp = raw_code.unwrap();
-    for (int addr = 0; addr < 20; ++addr, tmp >>= 3) {
-        switch (tmp & 0b111) {
-            case B_1x1:
-                ++result.n_1x1;
-                continue;
-            case B_1x2:
-                ++result.n_1x2;
-                continue;
-            case B_2x1:
-                ++result.n_2x1;
-                continue;
-        }
+    BasicRanges::generate(ranges, BasicRanges::generate_t { // generate target ranges
+        .n1 = 16 - tmp.n_1x1 - (tmp.n_1x2 + tmp.n_2x1) * 2, /// space -> 00
+        .n2 = tmp.n_1x2, /// 1x2 -> 01
+        .n3 = tmp.n_2x1, /// 2x1 -> 10
+        .n4 = tmp.n_1x1, /// 1x1 -> 11
+    });
+
+    for (auto &range : ranges) {
+        range = range_reverse(range); // basic ranges reversed
     }
-    return result;
-}
 
-Group::block_num_t Group::block_num(const CommonCode &common_code) {
-    block_num_t result;
-    auto range = range_reverse((uint32_t)common_code.unwrap());
-    for (; range; range >>= 2) {
-        switch (range & 0b11) {
-            case 0b01: /// 1x2 block
-                ++result.n_1x2;
-                continue;
-            case 0b10: /// 2x1 block
-                ++result.n_2x1;
-                continue;
-            case 0b11: /// 1x1 block
-                ++result.n_1x1;
-                continue;
+//    std::cout << ranges.size() << std::endl;
+
+    std::vector<CommonCode> all_cases;
+
+    for (uint64_t head = 0; head < 15; ++head) { // address of 2x2 block
+        /// head -> 0/1/2 / 4/5/6 / 8/9/10 / 12/13/14
+        if ((head & 0b11) == 0b11) {
+            ++head; // skip invalid address
+        }
+
+        /// head(4-bit) + basic-range(32-bit) --check--> valid cases
+        for (auto &&range : ranges) {
+
+            if (!check_range(head, range)) { // case valid
+                all_cases.emplace_back(CommonCode::create(
+
+                        head << 32 | range_reverse(range)
+
+                        ));
+//                range_reverse(range); // release valid cases
+            }
         }
     }
-    return result;
+
+    return all_cases;
 }
 
 std::vector<RawCode> Group::group_cases(const RawCode &seed) {

src/klotski_core/group/group.h

@@ -9,8 +9,8 @@ namespace klotski {
 const uint32_t TYPE_ID_LIMIT = 204;
 
 class Group {
+/// ---------------------------- block statistics -----------------------------
 public:
-
     struct block_num_t {
         uint8_t n_1x1 = 0;
         uint8_t n_1x2 = 0;
@@ -25,12 +25,15 @@ public:
     static block_num_t block_num(const RawCode &raw_code);
     static block_num_t block_num(const CommonCode &common_code);
 
+/// ---------------------------- xxxxxxxxxxxxxxxxx ----------------------------
+
 
 //    static uint32_t max_group_size(uint32_t type_id);
     static uint32_t max_group_size(const RawCode &raw_code) {
         return 65535 * 8;
     };
 
+    static std::vector<CommonCode> all_cases(uint32_t type_id);
     static std::vector<RawCode> group_cases(const RawCode &seed);
 
 };

test/group/group.cc

@@ -12,18 +12,16 @@ using klotski::ALL_CASES_SIZE_SUM;
 
 const char BLOCK_NUM_MD5[] = "46a7b3af6d039cbe2f7eaebdd196c6a2";
 
-TEST(Group, block_num) {
+TEST(Group, type_id) {
     std::thread threads[16];
-    std::string block_num_datas[16];
-
-    auto test = [&block_num_datas](uint64_t head) {
-        char buffer[13];
-        for (auto &&range: AllCases::fetch()[head]) {
+    auto test = [](uint64_t head) {
+        for (const auto &range : AllCases::fetch()[head]) {
             auto common_code = CommonCode::unsafe_create(head << 32 | range);
-            auto tmp = Group::block_num(common_code);
-            EXPECT_EQ(tmp, Group::block_num(common_code.to_raw_code()));
-            sprintf(buffer, "%d,%d,%d\n", tmp.n_1x2 + tmp.n_2x1, tmp.n_1x1, tmp.n_2x1);
-            block_num_datas[head] += buffer;
+            auto type_id = Group::type_id(common_code); // found type id
+            EXPECT_LT(type_id, TYPE_ID_LIMIT);
+            EXPECT_EQ(type_id, Group::type_id(common_code.to_raw_code()));
+            EXPECT_EQ(type_id, Group::type_id(Group::block_num(common_code)));
+            EXPECT_EQ(Group::block_num(type_id), Group::block_num(common_code));
         }
     };
     for (uint64_t head = 0; head < 16; ++head) { // split into 16 threads
@@ -32,42 +30,33 @@ TEST(Group, block_num) {
     for (auto &t : threads) {
         t.join();
     }
-
-    std::string block_num_data;
-    for (auto &&tmp : block_num_datas) {
-        block_num_data += tmp;
-    }
-    auto block_num_md5 = md5(block_num_data.c_str(), block_num_data.size());
-    EXPECT_STREQ(block_num_md5.c_str(), BLOCK_NUM_MD5);
-
-//    auto *block_num_data = new char[ALL_CASES_SIZE_SUM * 7 + 1]; // 'x,?x,x' + '\n'
-//    auto *current = block_num_data;
-//    for (auto &&common_code : AllCases::release()) {
-//        auto tmp = Group::block_num(common_code);
-//        EXPECT_EQ(tmp, Group::block_num(common_code.to_raw_code()));
-//        sprintf(current, "%d,%d,%d\n", tmp.n_1x2 + tmp.n_2x1, tmp.n_1x1, tmp.n_2x1);
-//        current += strlen(current);
-//    }
-//    auto block_num_md5 = md5(block_num_data, current - block_num_data);
-//    EXPECT_STREQ(block_num_md5.c_str(), BLOCK_NUM_MD5);
 }
 
-TEST(Group, type_id) {
+TEST(Group, block_num) {
     std::thread threads[16];
-    auto test = [](uint64_t head) {
-        for (const auto &range : AllCases::fetch()[head]) {
+    std::string block_num_data;
+    std::string block_num_str[16];
+
+    auto test = [&block_num_str](uint64_t head) {
+        char buffer[13];
+        for (auto &&range: AllCases::fetch()[head]) {
             auto common_code = CommonCode::unsafe_create(head << 32 | range);
-            auto type_id = Group::type_id(common_code); // found type id
-            EXPECT_LT(type_id, TYPE_ID_LIMIT);
-            EXPECT_EQ(type_id, Group::type_id(common_code.to_raw_code()));
-            EXPECT_EQ(type_id, Group::type_id(Group::block_num(common_code)));
-            EXPECT_EQ(Group::block_num(type_id), Group::block_num(common_code));
+            auto tmp = Group::block_num(common_code);
+            EXPECT_EQ(tmp, Group::block_num(common_code.to_raw_code()));
+            sprintf(buffer, "%d,%d,%d\n", tmp.n_1x2 + tmp.n_2x1, tmp.n_1x1, tmp.n_2x1);
+            block_num_str[head] += buffer;
         }
     };
+
     for (uint64_t head = 0; head < 16; ++head) { // split into 16 threads
         threads[head] = std::thread(test, head);
     }
     for (auto &t : threads) {
         t.join();
     }
+    for (auto &&tmp : block_num_str) { // combine string
+        block_num_data += tmp;
+    }
+    auto block_num_md5 = md5(block_num_data.c_str(), block_num_data.size());
+    EXPECT_STREQ(block_num_md5.c_str(), BLOCK_NUM_MD5);
 }