29 lines
859 B
SQL
29 lines
859 B
SQL
CALL aoc_load_file_lines('01');
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CREATE TABLE "01.characters" AS
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SELECT r.row - 1 AS index, r.character
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FROM "01.input"
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CROSS JOIN REGEXP_SPLIT_TO_TABLE(input, '') WITH ORDINALITY AS r(character, row);
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CREATE UNIQUE INDEX "01.characters.index" ON "01.characters" (index);
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UPDATE "01.output"
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SET result = (
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SELECT SUM(a.character::INT) AS result
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FROM "01.characters" a
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INNER JOIN "01.characters" b ON a.index = (b.index + 1) % (SELECT MAX(index) + 1 FROM "01.characters")
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WHERE a.character = b.character
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)
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WHERE part = 1;
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UPDATE "01.output"
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SET result = (
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SELECT SUM(a.character::INT) AS result
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FROM "01.characters" a
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INNER JOIN "01.characters" b ON a.index = (b.index + (SELECT (MAX(index) + 1) / 2 FROM "01.characters")) % (SELECT MAX(index) + 1 FROM "01.characters")
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WHERE a.character = b.character
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)
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WHERE part = 2;
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SELECT aoc_results('01')
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