Package g0301_0400.s0316_remove_duplicate_letters

Class Solution

  • public class Solution
extends Object
    316 - Remove Duplicate Letters\. Medium Given a string `s`, remove duplicate letters so that every letter appears once and only once. You must make sure your result is **the smallest in lexicographical order** among all possible results. **Example 1:** **Input:** s = "bcabc" **Output:** "abc" **Example 2:** **Input:** s = "cbacdcbc" **Output:** "acdb" **Constraints:** * 1 <= s.length <= 104 * `s` consists of lowercase English letters. **Note:** This question is the same as 1081.

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail

      • removeDuplicateLetters

        public String removeDuplicateLetters​(String s)