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Grokking the Coding Interview Patterns in Python

Solution: Is Subsequence

Understand how to use the two pointers method to determine if a string is a subsequence of another. Learn to compare characters sequentially and efficiently evaluate sequence matching with minimal space and linear time complexity.

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Statement

Given two strings s and t, determine whether s is a subsequence of t. Return TRUE if it is, or FALSE otherwise.

A subsequence of a string is a new string formed by deleting zero or more characters from the original string, without changing the relative order of the remaining characters. For example, "ace" is a subsequence of "abcde", whereas "aec" is not.

Constraints:

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