27 lines
688 B
V
27 lines
688 B
V
const table = [
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[u8(0), 3, 1, 7, 5, 9, 8, 6, 4, 2],
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[u8(7), 0, 9, 2, 1, 5, 4, 8, 6, 3],
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[u8(4), 2, 0, 6, 8, 7, 1, 3, 5, 9],
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[u8(1), 7, 5, 0, 9, 8, 3, 4, 2, 6],
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[u8(6), 1, 2, 3, 0, 4, 5, 9, 7, 8],
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[u8(3), 6, 7, 4, 2, 0, 9, 5, 8, 1],
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[u8(5), 8, 6, 9, 7, 2, 0, 1, 3, 4],
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[u8(8), 9, 4, 5, 3, 6, 2, 0, 1, 7],
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[u8(9), 4, 3, 8, 6, 1, 7, 2, 0, 5],
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[u8(2), 5, 8, 1, 4, 3, 6, 7, 9, 0],
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]
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fn damm(input string) bool {
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mut interim := u8(0)
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for c in input.bytes() {
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interim = table[interim][c-'0'[0]]
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}
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return interim == 0
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}
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fn main() {
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for s in ["5724", "5727", "112946", "112949"] {
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println("${s:6} ${damm(s)}")
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}
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}
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