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38 lines
1.3 KiB
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38 lines
1.3 KiB
HTML
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<p>给你三个正整数 <code>a</code>、<code>b</code> 和 <code>c</code>。</p>
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<p>你可以对 <code>a</code> 和 <code>b</code> 的二进制表示进行位翻转操作，返回能够使按位或运算 <code>a</code> OR <code>b</code> == <code>c</code> 成立的最小翻转次数。</p>
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<p>「位翻转操作」是指将一个数的二进制表示任何单个位上的 1 变成 0 或者 0 变成 1 。</p>
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<p> </p>
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<p><strong>示例 1：</strong></p>
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<p><img alt="" src="https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/01/11/sample_3_1676.png" style="height: 87px; width: 260px;"></p>
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<pre><strong>输入：</strong>a = 2, b = 6, c = 5
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<strong>输出：</strong>3
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<strong>解释：</strong>翻转后 a = 1 , b = 4 , c = 5 使得 <code>a</code> OR <code>b</code> == <code>c</code></pre>
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<p><strong>示例 2：</strong></p>
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<pre><strong>输入：</strong>a = 4, b = 2, c = 7
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<strong>输出：</strong>1
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</pre>
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<p><strong>示例 3：</strong></p>
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<pre><strong>输入：</strong>a = 1, b = 2, c = 3
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<strong>输出：</strong>0
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</pre>
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<p> </p>
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<p><strong>提示：</strong></p>
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<ul>
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<li><code>1 <= a <= 10^9</code></li>
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<li><code>1 <= b <= 10^9</code></li>
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<li><code>1 <= c <= 10^9</code></li>
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</ul>
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