Grokking 75: Top Coding Interview Questions
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Solution: Comparing Strings containing Backspaces
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Problem Statement

Given two strings containing backspaces (identified by the character ‘#’), check if the two strings are equal.

Example 1:

Input: str1="xy#z", str2="xzz#"
Output: true
Explanation: After applying backspaces the strings become "xz" and "xz" respectively.

Example 2:

Input: str1="xy#z", str2="xyz#"
Output: false
Explanation: After applying backspaces the strings become "xz" and "xy" respectively.

Example 3:

Input: str1="xp#", str2="xyz##"
Output: true
Explanation: After applying backspaces the strings become "x" and "x" respectively.

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