LeetCode知识点总结 – 392
LeetCode 392. Is Subsequence
考点难度StringEasy
题目
Given two strings s and t, return true if s is a subsequence of t, or false otherwise.
A subsequence of a string is a new string that is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. (i.e., “ace” is a subsequence of “abcde” while “aec” is not).
思路
用两个poi
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