mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-11-04 11:43:12 +08:00
39 lines
1.7 KiB
HTML
39 lines
1.7 KiB
HTML
<p>You are given an array of integers <code>distance</code>.</p>
|
|
|
|
<p>You start at the point <code>(0, 0)</code> on an <strong>X-Y plane,</strong> and you move <code>distance[0]</code> meters to the north, then <code>distance[1]</code> meters to the west, <code>distance[2]</code> meters to the south, <code>distance[3]</code> meters to the east, and so on. In other words, after each move, your direction changes counter-clockwise.</p>
|
|
|
|
<p>Return <code>true</code> <em>if your path crosses itself or </em><code>false</code><em> if it does not</em>.</p>
|
|
|
|
<p> </p>
|
|
<p><strong class="example">Example 1:</strong></p>
|
|
<img alt="" src="https://assets.leetcode.com/uploads/2022/12/21/11.jpg" style="width: 400px; height: 413px;" />
|
|
<pre>
|
|
<strong>Input:</strong> distance = [2,1,1,2]
|
|
<strong>Output:</strong> true
|
|
<strong>Explanation:</strong> The path crosses itself at the point (0, 1).
|
|
</pre>
|
|
|
|
<p><strong class="example">Example 2:</strong></p>
|
|
<img alt="" src="https://assets.leetcode.com/uploads/2022/12/21/22.jpg" style="width: 400px; height: 413px;" />
|
|
<pre>
|
|
<strong>Input:</strong> distance = [1,2,3,4]
|
|
<strong>Output:</strong> false
|
|
<strong>Explanation:</strong> The path does not cross itself at any point.
|
|
</pre>
|
|
|
|
<p><strong class="example">Example 3:</strong></p>
|
|
<img alt="" src="https://assets.leetcode.com/uploads/2022/12/21/33.jpg" style="width: 400px; height: 413px;" />
|
|
<pre>
|
|
<strong>Input:</strong> distance = [1,1,1,2,1]
|
|
<strong>Output:</strong> true
|
|
<strong>Explanation:</strong> The path crosses itself at the point (0, 0).
|
|
</pre>
|
|
|
|
<p> </p>
|
|
<p><strong>Constraints:</strong></p>
|
|
|
|
<ul>
|
|
<li><code>1 <= distance.length <= 10<sup>5</sup></code></li>
|
|
<li><code>1 <= distance[i] <= 10<sup>5</sup></code></li>
|
|
</ul>
|