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38 lines
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38 lines
1.4 KiB
HTML
<p>You are given an integer array, <code>nums</code>, and an integer <code>k</code>. <code>nums</code> comprises of only <code>0</code>'s and <code>1</code>'s. In one move, you can choose two <strong>adjacent</strong> indices and swap their values.</p>
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<p>Return <em>the <strong>minimum</strong> number of moves required so that </em><code>nums</code><em> has </em><code>k</code><em> <strong>consecutive</strong> </em><code>1</code><em>'s</em>.</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> nums = [1,0,0,1,0,1], k = 2
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<strong>Output:</strong> 1
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<strong>Explanation:</strong> In 1 move, nums could be [1,0,0,0,<u>1</u>,<u>1</u>] and have 2 consecutive 1's.
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</pre>
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<p><strong>Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> nums = [1,0,0,0,0,0,1,1], k = 3
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<strong>Output:</strong> 5
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<strong>Explanation:</strong> In 5 moves, the leftmost 1 can be shifted right until nums = [0,0,0,0,0,<u>1</u>,<u>1</u>,<u>1</u>].
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</pre>
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<p><strong>Example 3:</strong></p>
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<pre>
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<strong>Input:</strong> nums = [1,1,0,1], k = 2
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<strong>Output:</strong> 0
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<strong>Explanation:</strong> nums already has 2 consecutive 1's.
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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 <= 10<sup>5</sup></code></li>
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<li><code>nums[i]</code> is <code>0</code> or <code>1</code>.</li>
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<li><code>1 <= k <= sum(nums)</code></li>
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</ul>
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