Problem 1124. String permutations on phone keyboard

Solution 178688

Submitted on 18 Dec 2012 by Takehiko KOBORI

Correct

85Size

Leading solution size is 49.

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2 Comments

Aurelien Queffurust on 18 Dec 2012

This solution which is leading solution is not correct when the input x is a single number. For example if x = 2 , you expect a,b,c instead you only return a

Takehiko KOBORI on 18 Dec 2012

Thank you for your advice. I correct it.