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@@ -1,6 +1,6 @@
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import sequtils, strutils
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-proc checksum(ids: seq[string]): int =
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+func checksum(ids: seq[string]): int =
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var pairCount, tripCount: int
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for id in ids:
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var pairs, trips: bool
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@@ -16,7 +16,7 @@ proc checksum(ids: seq[string]): int =
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break
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pairCount * tripCount
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-proc difference(pairs: seq[tuple[a: char, b: char]]): string =
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+func difference(pairs: seq[tuple[a: char, b: char]]): string =
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var difference: bool
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for pair in pairs:
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if pair.a != pair.b:
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@@ -27,7 +27,7 @@ proc difference(pairs: seq[tuple[a: char, b: char]]): string =
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else:
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result &= pair.a
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-proc max_common(ids: seq[string]): string =
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+func max_common(ids: seq[string]): string =
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for i, id1 in ids:
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for id2 in ids[i+1 .. ids.high]:
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let difference = zip(id1, id2).difference
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