[面试题] Find next higher number with same digits
Find next higher number with same digits.
Example 1 : if num = 25468, o/p = 25486
Example 2 : if num = 21765, o/p = 25167
Example 3 : If num = 54321, o/p = 54321 (cause it’s not possible to gen a higher num than tiz with given digits ).
Google的面试题,实际上就是next_permutation。
转载于//www.cnblogs.com/easonliu/p/3643542.html
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