摘要:
原题链接在这里:https://leetcode.com/problems/smallest-subsequence-of-distinct-characters/ 题目: Return the lexicographically smallest subsequence of text that 阅读全文
摘要:
原题链接在这里:https://leetcode.com/problems/shifting-letters/ 题目: We have a string S of lowercase letters, and an integer array shifts. Call the shift of a 阅读全文