Mapping words -- Facebook - James Chen's C/C++ Home


Mapping words -- Facebook - James Chen's C/C++ Home
Mapping
'1' = 'A','B','C'
'2' = 'D','E','F'
...
'9' =

input: 112
output :ouput = [AAD, BBD, CCD, AAE, AAF, BBE, BBF, CCE, CCF]
http://www.careercup.com/question?id=5765850736885760
This is the inverse of the telephone problem.
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