Problem 663. Crypto Addition - v01
Crypto addition is solving for the numeric values of the characters given in an addition equation:
abc 756 +def 342 ---- ---- ghij 1098
Input [ 'abc' , 'def' , 'ghij' ] Output [ 756 342 1098 ] or [ ] if no solution
All characters have unique values.
Leading zeros are not allowed.
This Crypto Addition v01 is limited to two addends and a sum.
The output is the number values [anum bnum cnum] given [astr, bstr,cstr].
If there is no solution the output should be [ ], empty set.
I am planning v02 thru v05 with additional complications.
v02 will have embedded numbers.
v03 will allow up to ten addends vs the current two.
A solid recursive routine can crack each test case in under 75 msec.
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