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21 lines
804 B
HTML
21 lines
804 B
HTML
<p>Given an array of integers <code>nums</code> and an integer <code>k</code>, return <em>the total number of subarrays whose sum equals to</em> <code>k</code>.</p>
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<p>A subarray is a contiguous <strong>non-empty</strong> sequence of elements within an array.</p>
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<pre><strong>Input:</strong> nums = [1,1,1], k = 2
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<strong>Output:</strong> 2
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</pre><p><strong class="example">Example 2:</strong></p>
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<pre><strong>Input:</strong> nums = [1,2,3], k = 3
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<strong>Output:</strong> 2
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>1 <= nums.length <= 2 * 10<sup>4</sup></code></li>
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<li><code>-1000 <= nums[i] <= 1000</code></li>
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<li><code>-10<sup>7</sup> <= k <= 10<sup>7</sup></code></li>
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</ul>
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