leetcode.jp 博客
本网站所有文字及图片内容均来自网络,每周定时更新,仅供个人学习与研究,请勿用于商业用途。谢谢合作。

1081. Smallest Subsequence of Distinct Characters

Return the lexicographically smallest subsequence of text that contains all the distinct characters of text exactly once.

 

Example 1:

Input: "cdadabcc"
Output: "adbc"

Example 2:

Input: "abcd"
Output: "abcd"

Example 3:

Input: "ecbacba"
Output: "eacb"

Example 4:

Input: "leetcode"
Output: "letcod"

 

Note:

  1. 1 <= text.length <= 1000
  2. text consists of lowercase English letters.

 

Difficulty:

Medium

Lock:

Normal

Company:

FactSet