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Q1_05_One_Away.rb #12

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Q1_05_One_Away.rb #12

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af7708e
Update Q1_05_One_Away.rb
richardsondx Aug 3, 2017
cc6942c
Merge pull request #1 from richardsondx/improved-solution-using-inter…
richardsondx Aug 3, 2017
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46 changes: 16 additions & 30 deletions Chap_1_Arrays_and_Strings/Q1_05_One_Away.rb
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Original file line number Diff line number Diff line change
@@ -1,34 +1,20 @@
def one_away(s1, s2)
if s1 == s2
return true
elsif (s1.length - s2.length).abs > 1
return false
end
s1_array = s1.split('')
s2_array = s2.split('')

string_1 = s1.length >= s2.length ? s1 : s2
string_2 = s1.length < s2.length ? s1 : s2
intersection_length = (s1_array & s2_array).length

chars_1 = string_1.split('')
chars_2 = string_2.split('')

index_1 = 0
index_2 = 0
edit_count = 0

while (index_1 < string_1.length)
if chars_1[index_1] != chars_2[index_2]
edit_count += 1
index_2 += 1 if string_1.length == string_2.length
else
index_2 += 1
end

index_1 += 1

if edit_count > 1
return false
end
end

true
if s1.length >= s2.length
if intersection_length == (s1.length - 1)
true
else
false
end
elsif s1.length < s2.length
if intersection_length == (s2.length - 1)
true
else
false
end
end
end