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141 lines
2.5 KiB
HTML
141 lines
2.5 KiB
HTML
<p>给你一个二进制字符串 <code>s</code>。</p>
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<p>请你统计并返回其中 <strong>1 显著 </strong> 的 <span data-keyword="substring-nonempty">子字符串</span> 的数量。</p>
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<p>如果字符串中 1 的数量 <strong>大于或等于</strong> 0 的数量的 <strong>平方</strong>，则认为该字符串是一个 <strong>1 显著</strong> 的字符串 。</p>
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<p> </p>
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<p><strong class="example">示例 1：</strong></p>
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<div class="example-block">
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<p><strong>输入：</strong><span class="example-io">s = "00011"</span></p>
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<p><strong>输出：</strong><span class="example-io">5</span></p>
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<p><strong>解释：</strong></p>
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<p>1 显著的子字符串如下表所示。</p>
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</div>
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<table>
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<thead>
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<tr>
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<th>i</th>
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<th>j</th>
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<th>s[i..j]</th>
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<th>0 的数量</th>
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<th>1 的数量</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>3</td>
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<td>3</td>
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<td>1</td>
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<td>0</td>
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<td>1</td>
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</tr>
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<tr>
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<td>4</td>
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<td>4</td>
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<td>1</td>
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<td>0</td>
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<td>1</td>
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</tr>
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<tr>
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<td>2</td>
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<td>3</td>
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<td>01</td>
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<td>1</td>
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<td>1</td>
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</tr>
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<tr>
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<td>3</td>
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<td>4</td>
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<td>11</td>
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<td>0</td>
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<td>2</td>
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</tr>
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<tr>
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<td>2</td>
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<td>4</td>
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<td>011</td>
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<td>1</td>
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<td>2</td>
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</tr>
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</tbody>
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</table>
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<p><strong class="example">示例 2：</strong></p>
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<div class="example-block">
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<p><strong>输入：</strong><span class="example-io">s = "101101"</span></p>
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<p><strong>输出：</strong><span class="example-io">16</span></p>
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<p><strong>解释：</strong></p>
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<p>1 不显著的子字符串如下表所示。</p>
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<p>总共有 21 个子字符串，其中 5 个是 1 不显著字符串，因此有 16 个 1 显著子字符串。</p>
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</div>
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<table>
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<thead>
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<tr>
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<th>i</th>
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<th>j</th>
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<th>s[i..j]</th>
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<th>0 的数量</th>
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<th>1 的数量</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>1</td>
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<td>1</td>
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<td>0</td>
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<td>1</td>
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<td>0</td>
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</tr>
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<tr>
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<td>4</td>
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<td>4</td>
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<td>0</td>
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<td>1</td>
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<td>0</td>
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</tr>
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<tr>
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<td>1</td>
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<td>4</td>
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<td>0110</td>
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<td>2</td>
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<td>2</td>
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</tr>
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<tr>
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<td>0</td>
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<td>4</td>
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<td>10110</td>
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<td>2</td>
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<td>3</td>
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</tr>
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<tr>
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<td>1</td>
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<td>5</td>
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<td>01101</td>
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<td>2</td>
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<td>3</td>
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</tr>
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</tbody>
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</table>
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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 <= s.length <= 4 * 10<sup>4</sup></code></li>
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<li><code>s</code> 仅包含字符 <code>'0'</code> 和 <code>'1'</code>。</li>
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</ul>
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