386. Lexicographical Numbers
Problem Link
Given an integer n, return all the numbers in the range [1, n] sorted in lexicographical order.
Example:
Input: n = 32
Output: [1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,31,32,4,5,6,7,8,9]
class Solution:
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