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DrunkenAlcoholic/isogram.nim

Created May 14, 2024 04:02
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Isogram [Exercism - Nim]
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isogram.nim
import strutils
proc isIsogram*(s: string): bool =
result = true
for ch in s.toLowerAscii:
if ch in Letters:
if count(s.toLowerAscii, ch) >= 2: return false
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