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import std/[sugar, unittest]
# run tests with following command:
# nim c -r ch_1.nim
proc odd_character(s, t: string): char =
let
s_split = collect:
for c in s: c
t_split = collect:
for c in t: c
for i in 0..<len(s):
if s_split[i] != t_split[i]:
return t_split[i]
return t_split[^1]
suite "odd character":
test "Perl":
check(odd_character("Perl", "Peerl") == 'e')
test "Weekly":
check(odd_character("Weekly", "Weeakly") == 'a')
test "Box":
check(odd_character("Box", "Boxy") == 'y')
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