15/11/21 10:43:36.89 jCDsTAiM.net
>>133 ruby 2.0.0
s = 'ABBACACBBA'
s = s.tap {|s| puts s}.chars.each_cons(2).map() {|(a, b)| a == b ? a : 'ABC'.delete(a + b) }.join until s.empty?
15/11/21 10:43:36.89 jCDsTAiM.net
>>133 ruby 2.0.0
s = 'ABBACACBBA'
s = s.tap {|s| puts s}.chars.each_cons(2).map() {|(a, b)| a == b ? a : 'ABC'.delete(a + b) }.join until s.empty?