Completed puzzles for 2021 day 23
This commit is contained in:
@@ -38,21 +38,233 @@ using Position = char;
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using UInt = int;
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using Type = char;
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std::multimap<Position, std::pair<Position, UInt>> valid_moves{
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{0, {7, 3}}, {0, {8, 5}}, {0, {9, 7}}, {0, {10, 9}}, {1, {7, 2}}, {1, {8, 4}},
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{1, {9, 6}}, {1, {10, 8}}, {2, {7, 2}}, {2, {8, 2}}, {2, {9, 4}}, {2, {10, 6}},
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{3, {7, 4}}, {3, {8, 2}}, {3, {9, 2}}, {3, {10, 4}}, {4, {7, 6}}, {4, {8, 4}},
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{4, {9, 2}}, {4, {10, 2}}, {5, {7, 8}}, {5, {8, 6}}, {5, {9, 4}}, {5, {10, 2}},
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{6, {7, 9}}, {6, {8, 7}}, {6, {9, 5}}, {6, {10, 3}}, {7, {0, 3}}, {7, {1, 2}},
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{7, {2, 2}}, {7, {3, 4}}, {7, {4, 6}}, {7, {5, 8}}, {7, {6, 9}}, {7, {11, 1}},
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{8, {0, 5}}, {8, {1, 4}}, {8, {2, 2}}, {8, {3, 2}}, {8, {4, 4}}, {8, {5, 6}},
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{8, {6, 7}}, {8, {12, 1}}, {9, {0, 7}}, {9, {1, 6}}, {9, {2, 4}}, {9, {3, 2}},
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{9, {4, 2}}, {9, {5, 4}}, {9, {6, 5}}, {9, {13, 1}}, {10, {0, 9}}, {10, {1, 8}},
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{10, {2, 6}}, {10, {3, 4}}, {10, {4, 2}}, {10, {5, 2}}, {10, {6, 3}}, {10, {14, 1}},
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{11, {7, 1}}, {12, {8, 1}}, {13, {9, 1}}, {14, {10, 1}}, {11, {15, 1}}, {12, {16, 1}},
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{13, {17, 1}}, {14, {18, 1}}, {15, {11, 1}}, {16, {12, 1}}, {17, {13, 1}}, {18, {14, 1}},
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{15, {19, 1}}, {16, {20, 1}}, {17, {21, 1}}, {18, {22, 1}}, {19, {15, 1}}, {20, {16, 1}},
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{21, {17, 1}}, {22, {18, 1}}};
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std::multimap<Position, std::pair<std::vector<Position>, UInt>> valid_moves{
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{0, {{1, 7}, 3}},
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{0, {{1, 2, 8}, 5}},
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{0, {{1, 2, 3, 9}, 7}},
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{0, {{1, 2, 3, 4, 10}, 9}},
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{0, {{1, 7, 11}, 4}},
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{0, {{1, 2, 8, 12}, 6}},
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{0, {{1, 2, 3, 9, 13}, 8}},
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{0, {{1, 2, 3, 4, 10, 14}, 10}},
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{0, {{1, 7, 11, 15}, 5}},
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{0, {{1, 2, 8, 12, 16}, 7}},
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{0, {{1, 2, 3, 9, 13, 17}, 9}},
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{0, {{1, 2, 3, 4, 10, 14, 18}, 11}},
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{0, {{1, 7, 11, 15, 19}, 6}},
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{0, {{1, 2, 8, 12, 16, 20}, 8}},
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{0, {{1, 2, 3, 9, 13, 17, 21}, 10}},
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{0, {{1, 2, 3, 4, 10, 14, 18, 22}, 12}},
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{1, {{7}, 2}},
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{1, {{2, 8}, 4}},
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{1, {{2, 3, 9}, 6}},
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{1, {{2, 3, 4, 10}, 8}},
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{1, {{7, 11}, 3}},
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{1, {{2, 8, 12}, 5}},
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{1, {{2, 3, 9, 13}, 7}},
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{1, {{2, 3, 4, 10, 14}, 9}},
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{1, {{7, 11, 15}, 4}},
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{1, {{2, 8, 12, 16}, 6}},
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{1, {{2, 3, 9, 13, 17}, 8}},
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{1, {{2, 3, 4, 10, 14, 18}, 10}},
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{1, {{7, 11, 15, 19}, 5}},
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{1, {{2, 8, 12, 16, 20}, 7}},
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{1, {{2, 3, 9, 13, 17, 21}, 9}},
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{1, {{2, 3, 4, 10, 14, 18, 22}, 11}},
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{2, {{7}, 2}},
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{2, {{8}, 2}},
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{2, {{3, 9}, 4}},
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{2, {{3, 4, 10}, 6}},
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{2, {{7, 11}, 3}},
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{2, {{8, 12}, 3}},
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{2, {{3, 9, 13}, 5}},
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{2, {{3, 4, 10, 14}, 7}},
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{2, {{7, 11, 15}, 4}},
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{2, {{8, 12, 16}, 4}},
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{2, {{3, 9, 13, 17}, 6}},
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{2, {{3, 4, 10, 14, 18}, 8}},
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{2, {{7, 11, 15, 19}, 5}},
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{2, {{8, 12, 16, 20}, 5}},
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{2, {{3, 9, 13, 17, 21}, 7}},
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{2, {{3, 4, 10, 14, 18, 22}, 9}},
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{3, {{2, 7}, 4}},
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{3, {{8}, 2}},
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{3, {{9}, 2}},
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{3, {{4, 10}, 4}},
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{3, {{2, 7, 11}, 5}},
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{3, {{8, 12}, 3}},
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{3, {{9, 13}, 3}},
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{3, {{4, 10, 14}, 5}},
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{3, {{2, 7, 11, 15}, 6}},
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{3, {{8, 12, 16}, 4}},
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{3, {{9, 13, 17}, 4}},
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{3, {{4, 10, 14, 18}, 6}},
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{3, {{2, 7, 11, 15, 19}, 7}},
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{3, {{8, 12, 16, 20}, 5}},
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{3, {{9, 13, 17, 21}, 5}},
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{3, {{4, 10, 14, 18, 22}, 7}},
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{4, {{3, 2, 7}, 6}},
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{4, {{3, 8}, 4}},
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{4, {{9}, 2}},
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{4, {{10}, 2}},
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{4, {{3, 2, 7, 11}, 7}},
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{4, {{3, 8, 12}, 5}},
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{4, {{9, 13}, 3}},
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{4, {{10, 14}, 3}},
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{4, {{3, 2, 7, 11, 15}, 8}},
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{4, {{3, 8, 12, 16}, 6}},
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{4, {{9, 13, 17}, 4}},
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{4, {{10, 14, 18}, 4}},
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{4, {{3, 2, 7, 11, 15, 19}, 9}},
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{4, {{3, 8, 12, 16, 20}, 7}},
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{4, {{9, 13, 17, 21}, 5}},
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{4, {{10, 14, 18, 22}, 5}},
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{5, {{4, 3, 2, 7}, 8}},
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{5, {{4, 3, 8}, 6}},
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{5, {{4, 9}, 4}},
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{5, {{10}, 2}},
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{5, {{4, 3, 2, 7, 11}, 9}},
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{5, {{4, 3, 8, 12}, 7}},
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{5, {{4, 9, 13}, 5}},
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{5, {{10, 14}, 3}},
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{5, {{4, 3, 2, 7, 11, 15}, 10}},
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{5, {{4, 3, 8, 12, 16}, 8}},
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{5, {{4, 9, 13, 17}, 6}},
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{5, {{10, 14, 18}, 4}},
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{5, {{4, 3, 2, 7, 11, 15, 19}, 11}},
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{5, {{4, 3, 8, 12, 16, 20}, 9}},
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{5, {{4, 9, 13, 17, 21}, 7}},
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{5, {{10, 14, 18, 22}, 5}},
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{6, {{5, 4, 3, 2, 7}, 9}},
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{6, {{5, 4, 3, 8}, 7}},
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{6, {{5, 4, 9}, 5}},
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{6, {{5, 10}, 3}},
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{6, {{5, 4, 3, 2, 7, 11}, 10}},
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{6, {{5, 4, 3, 8, 12}, 8}},
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{6, {{5, 4, 9, 13}, 6}},
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{6, {{5, 10, 14}, 4}},
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{6, {{5, 4, 3, 2, 7, 11, 15}, 11}},
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{6, {{5, 4, 3, 8, 12, 16}, 9}},
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{6, {{5, 4, 9, 13, 17}, 7}},
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{6, {{5, 10, 14, 18}, 5}},
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{6, {{5, 4, 3, 2, 7, 11, 15, 19}, 12}},
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{6, {{5, 4, 3, 8, 12, 16, 20}, 10}},
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{6, {{5, 4, 9, 13, 17, 21}, 8}},
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{6, {{5, 10, 14, 18, 22}, 6}},
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{7, {{1, 0}, 3}},
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{7, {{1}, 2}},
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{7, {{2}, 2}},
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{7, {{2, 3}, 4}},
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{7, {{2, 3, 4}, 6}},
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{7, {{2, 3, 4, 5}, 8}},
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{7, {{2, 3, 4, 5, 6}, 9}},
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{8, {{2, 1, 0}, 5}},
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{8, {{2, 1}, 4}},
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{8, {{2}, 2}},
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{8, {{3}, 2}},
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{8, {{3, 4}, 4}},
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{8, {{3, 4, 5}, 6}},
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{8, {{3, 4, 5, 6}, 7}},
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{9, {{3, 2, 1, 0}, 7}},
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{9, {{3, 2, 1}, 6}},
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{9, {{3, 2}, 4}},
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{9, {{3}, 2}},
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{9, {{4}, 2}},
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{9, {{4, 5}, 4}},
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{9, {{4, 5, 6}, 5}},
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{10, {{4, 3, 2, 1, 0}, 9}},
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{10, {{4, 3, 2, 1}, 8}},
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{10, {{4, 3, 2}, 6}},
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{10, {{4, 3}, 4}},
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{10, {{4}, 2}},
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{10, {{5}, 2}},
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{10, {{5, 6}, 3}},
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{11, {{7, 1, 0}, 4}},
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{11, {{7, 1}, 3}},
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{11, {{7, 2}, 3}},
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{11, {{7, 2, 3}, 5}},
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{11, {{7, 2, 3, 4}, 7}},
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{11, {{7, 2, 3, 4, 5}, 9}},
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{11, {{7, 2, 3, 4, 5, 6}, 10}},
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{12, {{8, 2, 1, 0}, 6}},
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{12, {{8, 2, 1}, 5}},
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{12, {{8, 2}, 3}},
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{12, {{8, 3}, 3}},
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{12, {{8, 3, 4}, 5}},
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{12, {{8, 3, 4, 5}, 7}},
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{12, {{8, 3, 4, 5, 6}, 8}},
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{13, {{9, 3, 2, 1, 0}, 8}},
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{13, {{9, 3, 2, 1}, 7}},
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{13, {{9, 3, 2}, 5}},
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{13, {{9, 3}, 3}},
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{13, {{9, 4}, 3}},
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{13, {{9, 4, 5}, 5}},
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{13, {{9, 4, 5, 6}, 7}},
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{14, {{10, 4, 3, 2, 1, 0}, 10}},
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{14, {{10, 4, 3, 2, 1}, 9}},
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{14, {{10, 4, 3, 2}, 7}},
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{14, {{10, 4, 3}, 5}},
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{14, {{10, 4}, 3}},
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{14, {{10, 5}, 3}},
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{14, {{10, 5, 6}, 4}},
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{15, {{11, 7, 1, 0}, 5}},
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{15, {{11, 7, 1}, 4}},
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{15, {{11, 7, 2}, 4}},
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{15, {{11, 7, 2, 3}, 6}},
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{15, {{11, 7, 2, 3, 4}, 8}},
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{15, {{11, 7, 2, 3, 4, 5}, 10}},
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{15, {{11, 7, 2, 3, 4, 5, 6}, 11}},
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{16, {{12, 8, 2, 1, 0}, 7}},
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{16, {{12, 8, 2, 1}, 6}},
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{16, {{12, 8, 2}, 4}},
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{16, {{12, 8, 3}, 4}},
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{16, {{12, 8, 3, 4}, 6}},
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{16, {{12, 8, 3, 4, 5}, 8}},
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{16, {{12, 8, 3, 4, 5, 6}, 9}},
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{17, {{13, 9, 3, 2, 1, 0}, 9}},
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{17, {{13, 9, 3, 2, 1}, 8}},
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{17, {{13, 9, 3, 2}, 6}},
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{17, {{13, 9, 3}, 4}},
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{17, {{13, 9, 4}, 4}},
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{17, {{13, 9, 4, 5}, 6}},
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{17, {{13, 9, 4, 5, 6}, 8}},
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{18, {{14, 10, 4, 3, 2, 1, 0}, 11}},
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{18, {{14, 10, 4, 3, 2, 1}, 10}},
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{18, {{14, 10, 4, 3, 2}, 8}},
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{18, {{14, 10, 4, 3}, 7}},
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{18, {{14, 10, 4}, 4}},
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{18, {{14, 10, 5}, 4}},
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{18, {{14, 10, 5, 6}, 5}},
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{19, {{15, 11, 7, 1, 0}, 6}},
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{19, {{15, 11, 7, 1}, 5}},
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{19, {{15, 11, 7, 2}, 5}},
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{19, {{15, 11, 7, 2, 3}, 7}},
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{19, {{15, 11, 7, 2, 3, 4}, 9}},
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{19, {{15, 11, 7, 2, 3, 4, 5}, 11}},
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{19, {{15, 11, 7, 2, 3, 4, 5, 6}, 12}},
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{20, {{16, 12, 8, 2, 1, 0}, 8}},
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{20, {{16, 12, 8, 2, 1}, 7}},
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{20, {{16, 12, 8, 2}, 5}},
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{20, {{16, 12, 8, 3}, 5}},
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{20, {{16, 12, 8, 3, 4}, 7}},
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{20, {{16, 12, 8, 3, 4, 5}, 9}},
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{20, {{16, 12, 8, 3, 4, 5, 6}, 10}},
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{21, {{17, 13, 9, 3, 2, 1, 0}, 10}},
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{21, {{17, 13, 9, 3, 2, 1}, 9}},
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{21, {{17, 13, 9, 3, 2}, 7}},
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{21, {{17, 13, 9, 3}, 5}},
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{21, {{17, 13, 9, 4}, 5}},
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{21, {{17, 13, 9, 4, 5}, 7}},
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{21, {{17, 13, 9, 4, 5, 6}, 9}},
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{22, {{18, 14, 10, 4, 3, 2, 1, 0}, 12}},
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{22, {{18, 14, 10, 4, 3, 2, 1}, 11}},
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{22, {{18, 14, 10, 4, 3, 2}, 9}},
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{22, {{18, 14, 10, 4, 3}, 8}},
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{22, {{18, 14, 10, 4}, 5}},
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{22, {{18, 14, 10, 5}, 5}},
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{22, {{18, 14, 10, 5, 6}, 6}},
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};
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std::map<Type, UInt> multipliers{{'A', 1}, {'B', 10}, {'C', 100}, {'D', 1000}};
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@@ -76,93 +288,31 @@ struct State
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return nodes_[from] != finished_[from];
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}
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if (from > 14 && from < 19) {
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if (to < 15) {
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// Second bottom row - only move up if we're not meant to be here or the one below isn't.
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return nodes_[from] != finished_[from] ||
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(nodes_[from + 4] != '.' && nodes_[from + 4] != finished_[from + 4]);
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}
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// Moving down - only do it if we're of the right type.
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return nodes_[from] == finished_[to];
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return nodes_[from] != finished_[from] || nodes_[from + 4] != finished_[from];
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}
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if (from > 10 && from < 15) {
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// Second top row.
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if (to < 11) {
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return nodes_[from] != finished_[from] ||
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(nodes_[from + 4] != '.' && nodes_[from + 4] != finished_[from + 4]) ||
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(nodes_[from + 8] != '.' && nodes_[from + 8] != finished_[from + 8]);
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}
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// Moving down - only do it if we're of the right type.
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return nodes_[from] == finished_[to];
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return nodes_[from] != finished_[from] || nodes_[from + 4] != finished_[from] ||
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nodes_[from + 8] != finished_[from + 8];
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}
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if (from > 6 && from < 11) {
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if (to > 10) {
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// Only move into bottom position if we're moving the correct piece.
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return nodes_[from] == finished_[to];
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}
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// Moving to top row
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if (to == 0 && nodes_[1] != '.') {
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return false;
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}
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if (to < 2 && from > 7 && nodes_[2] != '.') {
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return false;
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}
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if (to < 3 && from > 8 && nodes_[3] != '.') {
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return false;
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}
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if (to < 4 && from > 9 && nodes_[4] != '.') {
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return false;
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}
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if (to == 6 && nodes_[5] != '.') {
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return false;
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}
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if (to > 4 && from < 10 && nodes_[4] != '.') {
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return false;
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}
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if (to > 3 && from < 9 && nodes_[3] != '.') {
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return false;
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}
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if (to > 2 && from < 8 && nodes_[2] != '.') {
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return false;
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}
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return true;
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return nodes_[from] != finished_[from] || nodes_[from + 4] != finished_[from] ||
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nodes_[from + 8] != finished_[from] || nodes_[from + 12] != finished_[from];
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}
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if (from < 7) {
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// Can only move down if we're the right type.
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// Can only move down if we're the right type and anything already in the node is the right
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// type.
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if (nodes_[from] != finished_[to]) {
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return false;
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}
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// Now encode the rules about moving along the top.
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if (from == 0 && nodes_[1] != '.') {
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return false;
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while (to > 10) {
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to -= 4;
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}
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if (from < 2 && to > 7 && nodes_[2] != '.') {
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return false;
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while (to < 22) {
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if (nodes_[to] != '.' && nodes_[to] != finished_[to]) {
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return false;
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}
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to += 4;
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}
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if (from < 3 && to > 8 && nodes_[3] != '.') {
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return false;
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}
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if (from < 4 && to > 9 && nodes_[4] != '.') {
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return false;
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}
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if (from == 6 && nodes_[5] != '.') {
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return false;
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}
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if (from > 4 && to < 10 && nodes_[4] != '.') {
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return false;
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}
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if (from > 3 && to < 9 && nodes_[3] != '.') {
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return false;
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}
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if (from > 2 && to < 8 && nodes_[2] != '.') {
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return false;
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}
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return true;
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}
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abort();
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@@ -191,7 +341,6 @@ std::array<Type, State::size_> State::finished_ = {'.', '.', '.', '.', '.', '.',
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'B', 'C', 'D', 'A', 'B', 'C', 'D', 'A',
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'B', 'C', 'D', 'A', 'B', 'C', 'D'};
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std::ostream& operator<<(std::ostream& os, State const& s)
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{
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os << "#############\n"
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@@ -220,9 +369,18 @@ struct StateTranstitionManager
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auto [it_begin, it_end] = valid_moves.equal_range(i);
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||||
for (auto move_it{it_begin}; move_it != it_end; ++move_it) {
|
||||
State next_state(state);
|
||||
UInt cost_delta = move_it->second.second * multipliers[state.node(i)];
|
||||
if (next_state.move(i, move_it->second.first, cost_delta)) {
|
||||
inserter(next_state, cost_delta);
|
||||
bool cont = true;
|
||||
for (auto pos_it : move_it->second.first) {
|
||||
if (state.node(pos_it) != '.') {
|
||||
cont = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (cont) {
|
||||
UInt cost_delta = move_it->second.second * multipliers[state.node(i)];
|
||||
if (next_state.move(i, move_it->second.first.back(), cost_delta)) {
|
||||
inserter(next_state, cost_delta);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -231,15 +389,6 @@ struct StateTranstitionManager
|
||||
|
||||
auto main() -> int
|
||||
{
|
||||
std::cout << "digraph { \n";
|
||||
for (auto move_it : valid_moves) {
|
||||
if (move_it.first < move_it.second.first) {
|
||||
continue;
|
||||
}
|
||||
std::cout << (int)move_it.first << " -> " << (int)move_it.second.first << " [label=\""
|
||||
<< move_it.second.second << "\" ];\n";
|
||||
}
|
||||
std::cout << "};\n";
|
||||
std::regex line2_re{R"(#(.)(.)\.(.)\.(.)\.(.)\.(.)(.)#)"};
|
||||
std::regex line3_re{"###(.)#(.)#(.)#(.)###"};
|
||||
std::regex line4_re{"#(.)#(.)#(.)#(.)#"};
|
||||
|
||||
Reference in New Issue
Block a user