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小墨
2023-12-09 18:42:21 +08:00
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leetcode-cn/problem (Chinese)/有效的正方形 [valid-square].html
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<p>给定2D空间中四个点的坐标&nbsp;<code>p1</code>,&nbsp;<code>p2</code>,&nbsp;<code>p3</code>&nbsp;和&nbsp;<code>p4</code>，如果这四个点构成一个正方形，则返回 <code>true</code> 。</p>
<p>点的坐标&nbsp;<code>p<sub>i</sub></code> 表示为 <code>[xi, yi]</code> 。输入 <strong>不是</strong> 按任何顺序给出的。</p>
<p>点的坐标&nbsp;<code>p<sub>i</sub></code> 表示为 <code>[xi, yi]</code> 。 <code>输入没有任何顺序</code> 。</p>
<p>一个 <strong>有效的正方形</strong> 有四条等边和四个等角(90度角)。</p>