mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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184 lines
16 KiB
JSON
184 lines
16 KiB
JSON
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"title": "Backspace String Compare",
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"content": "<p>Given two strings <code>s</code> and <code>t</code>, return <code>true</code> <em>if they are equal when both are typed into empty text editors</em>. <code>'#'</code> means a backspace character.</p>\n\n<p>Note that after backspacing an empty text, the text will continue empty.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "ab#c", t = "ad#c"\n<strong>Output:</strong> true\n<strong>Explanation:</strong> Both s and t become "ac".\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "ab##", t = "c#d#"\n<strong>Output:</strong> true\n<strong>Explanation:</strong> Both s and t become "".\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "a#c", t = "b"\n<strong>Output:</strong> false\n<strong>Explanation:</strong> s becomes "c" while t becomes "b".\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code><span>1 <= s.length, t.length <= 200</span></code></li>\n\t<li><span><code>s</code> and <code>t</code> only contain lowercase letters and <code>'#'</code> characters.</span></li>\n</ul>\n\n<p> </p>\n<p><strong>Follow up:</strong> Can you solve it in <code>O(n)</code> time and <code>O(1)</code> space?</p>\n",
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