233. Is Subsequence

EasyTwo Pointers

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).

Examples

Input: abc ahbgdc

Output: true

Explanation: a, b, c all appear in 'ahbgdc' in order (a_b__c).

Constraints

  • 0 <= s.length <= 100
  • 0 <= t.length <= 10^4
  • s and t consist only of lowercase English letters.
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Run checks all cases above. Submit evaluates all test cases.