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Solution: Backspace String Compare

Understand how to compare two strings that include backspace characters by applying the two pointers technique. Learn to traverse both strings from end to start, effectively skipping characters canceled by backspaces, and evaluate equality without extra space.

Statement

Given two strings s and t, return true if they produce the same result when typed into an empty text editor, where '#' represents a backspace character. Applying a backspace on an empty editor leaves it unchanged.

Note: Can you solve it in O(n)O(n) time and O(1)O(1) space?

Constraints:

  • 11 \leq ...