README_EN.md

844. Backspace String Compare

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Description

Given two strings S and T, return if they are equal when both are typed into empty text editors. # means a backspace character.

Example 1:

Input: S = "ab#c", T = "ad#c"

Output: true

Explanation: Both S and T become "ac".

Example 2:

Input: S = "ab##", T = "c#d#"

Output: true

Explanation: Both S and T become "".

Example 3:

Input: S = "a##c", T = "#a#c"

Output: true

Explanation: Both S and T become "c".

Example 4:

Input: S = "a#c", T = "b"

Output: false

Explanation: S becomes "c" while T becomes "b".

Note:

<li><code><span>1 &lt;= S.length &lt;= 200</span></code></li>

<li><code><span>1 &lt;= T.length &lt;= 200</span></code></li>

<li><span><code>S</code>&nbsp;and <code>T</code> only contain&nbsp;lowercase letters and <code>&#39;#&#39;</code> characters.</span></li>

Follow up:

<li>Can you solve it in <code>O(N)</code> time and <code>O(1)</code> space?</li>

Solutions

Python3

Java

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