40 lines
867 B
MySQL
40 lines
867 B
MySQL
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with
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bounds as (
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select
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unnest(string_split(trim(content, '\n'), ',')) as f,
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string_split(f, '-') as bounds,
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cast(bounds[1] as int64) as low,
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cast(bounds[2] as int64) as high
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from read_text('data/02.in')
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),
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candidates as (
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select
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unnest(range(low, high + 1)) as num,
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cast(num as string) as num_str,
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len(num_str) as len
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from bounds
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),
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part1 as (
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select sum(num) as solution
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from candidates
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where num_str[: len // 2] = num_str[len // 2 + 1:]
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),
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part2 as (
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select sum(num) as solution
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from candidates
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where exists (
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select stride from range(1, len) as range (stride)
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where
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len % stride = 0
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and repeat(num_str[: stride], len // stride) = num_str
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)
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)
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select
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part1.solution as p1,
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part2.solution as p2
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from part1, part2;
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