mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-10 18:48:13 +08:00
26 lines
1.3 KiB
HTML
26 lines
1.3 KiB
HTML
<p>Given an integer array <code>nums</code>, return <em>an array</em> <code>answer</code> <em>such that</em> <code>answer[i]</code> <em>is equal to the product of all the elements of</em> <code>nums</code> <em>except</em> <code>nums[i]</code>.</p>
|
|
|
|
<p>The product of any prefix or suffix of <code>nums</code> is <strong>guaranteed</strong> to fit in a <strong>32-bit</strong> integer.</p>
|
|
|
|
<p>You must write an algorithm that runs in <code>O(n)</code> time and without using the division operation.</p>
|
|
|
|
<p> </p>
|
|
<p><strong class="example">Example 1:</strong></p>
|
|
<pre><strong>Input:</strong> nums = [1,2,3,4]
|
|
<strong>Output:</strong> [24,12,8,6]
|
|
</pre><p><strong class="example">Example 2:</strong></p>
|
|
<pre><strong>Input:</strong> nums = [-1,1,0,-3,3]
|
|
<strong>Output:</strong> [0,0,9,0,0]
|
|
</pre>
|
|
<p> </p>
|
|
<p><strong>Constraints:</strong></p>
|
|
|
|
<ul>
|
|
<li><code>2 <= nums.length <= 10<sup>5</sup></code></li>
|
|
<li><code>-30 <= nums[i] <= 30</code></li>
|
|
<li>The product of any prefix or suffix of <code>nums</code> is <strong>guaranteed</strong> to fit in a <strong>32-bit</strong> integer.</li>
|
|
</ul>
|
|
|
|
<p> </p>
|
|
<p><strong>Follow up:</strong> Can you solve the problem in <code>O(1)</code> extra space complexity? (The output array <strong>does not</strong> count as extra space for space complexity analysis.)</p>
|