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https://gitee.com/coder-xiaomo/leetcode-problemset
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zhangbk1
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<p>给你一个字符串数组 <code>message</code> 和一个字符串数组 <code>bannedWords</code>。</p>
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<p>如果数组中 <strong>至少</strong> 存在两个单词与 <code>bannedWords</code> 中的任一单词 <strong>完全相同</strong>，则该数组被视为 <strong>垃圾信息</strong>。</p>
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<p>如果数组 <code>message</code> 是垃圾信息，则返回 <code>true</code>；否则返回 <code>false</code>。</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">message = ["hello","world","leetcode"], bannedWords = ["world","hello"]</span></p>
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<p><strong>输出：</strong> <span class="example-io">true</span></p>
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<p><strong>解释：</strong></p>
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<p>数组 <code>message</code> 中的 <code>"hello"</code> 和 <code>"world"</code> 都出现在数组 <code>bannedWords</code> 中。</p>
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</div>
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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">message = ["hello","programming","fun"], bannedWords = ["world","programming","leetcode"]</span></p>
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<p><strong>输出：</strong> <span class="example-io">false</span></p>
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<p><strong>解释：</strong></p>
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<p>数组 <code>message</code> 中只有一个单词（<code>"programming"</code>）出现在数组 <code>bannedWords</code> 中。</p>
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</div>
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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 <= message.length, bannedWords.length <= 10<sup>5</sup></code></li>
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<li><code>1 <= message[i].length, bannedWords[i].length <= 15</code></li>
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<li><code>message[i]</code> 和 <code>bannedWords[i]</code> 都只由小写英文字母组成。</li>
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</ul>
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<p>给你一个整数 <code>mountainHeight</code> 表示山的高度。</p>
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<p>同时给你一个整数数组 <code>workerTimes</code>，表示工人们的工作时间（单位：<strong>秒</strong>）。</p>
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<p>工人们需要 <strong>同时 </strong>进行工作以 <strong>降低 </strong>山的高度。对于工人 <code>i</code> :</p>
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<ul>
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<li>山的高度降低 <code>x</code>，需要花费 <code>workerTimes[i] + workerTimes[i] * 2 + ... + workerTimes[i] * x</code> 秒。例如：
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<ul>
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<li>山的高度降低 1，需要 <code>workerTimes[i]</code> 秒。</li>
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<li>山的高度降低 2，需要 <code>workerTimes[i] + workerTimes[i] * 2</code> 秒，依此类推。</li>
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</ul>
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</li>
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</ul>
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<p>返回一个整数，表示工人们使山的高度降低到 0 所需的 <strong>最少</strong> 秒数。</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">mountainHeight = 4, workerTimes = [2,1,1]</span></p>
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<p><strong>输出：</strong> <span class="example-io">3</span></p>
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<p><strong>解释：</strong></p>
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<p>将山的高度降低到 0 的一种方式是：</p>
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<ul>
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<li>工人 0 将高度降低 1，花费 <code>workerTimes[0] = 2</code> 秒。</li>
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<li>工人 1 将高度降低 2，花费 <code>workerTimes[1] + workerTimes[1] * 2 = 3</code> 秒。</li>
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<li>工人 2 将高度降低 1，花费 <code>workerTimes[2] = 1</code> 秒。</li>
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</ul>
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<p>因为工人同时工作，所需的最少时间为 <code>max(2, 3, 1) = 3</code> 秒。</p>
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</div>
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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">mountainHeight = 10, workerTimes = [3,2,2,4]</span></p>
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<p><strong>输出：</strong> <span class="example-io">12</span></p>
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<p><strong>解释：</strong></p>
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<ul>
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<li>工人 0 将高度降低 2，花费 <code>workerTimes[0] + workerTimes[0] * 2 = 9</code> 秒。</li>
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<li>工人 1 将高度降低 3，花费 <code>workerTimes[1] + workerTimes[1] * 2 + workerTimes[1] * 3 = 12</code> 秒。</li>
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<li>工人 2 将高度降低 3，花费 <code>workerTimes[2] + workerTimes[2] * 2 + workerTimes[2] * 3 = 12</code> 秒。</li>
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<li>工人 3 将高度降低 2，花费 <code>workerTimes[3] + workerTimes[3] * 2 = 12</code> 秒。</li>
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</ul>
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<p>所需的最少时间为 <code>max(9, 12, 12, 12) = 12</code> 秒。</p>
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</div>
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<p><strong class="example">示例 3：</strong></p>
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<div class="example-block">
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<p><strong>输入：</strong> <span class="example-io">mountainHeight = 5, workerTimes = [1]</span></p>
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<p><strong>输出：</strong> <span class="example-io">15</span></p>
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<p><strong>解释：</strong></p>
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<p>这个示例中只有一个工人，所以答案是 <code>workerTimes[0] + workerTimes[0] * 2 + workerTimes[0] * 3 + workerTimes[0] * 4 + workerTimes[0] * 5 = 15</code> 秒。</p>
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</div>
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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 <= mountainHeight <= 10<sup>5</sup></code></li>
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<li><code>1 <= workerTimes.length <= 10<sup>4</sup></code></li>
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<li><code>1 <= workerTimes[i] <= 10<sup>6</sup></code></li>
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</ul>
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<p>给你两个字符串 <code>word1</code> 和 <code>word2</code> 。</p>
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<p>如果一个字符串 <code>x</code> 重新排列后，<code>word2</code> 是重排字符串的 <span data-keyword="string-prefix">前缀</span> ，那么我们称字符串 <code>x</code> 是 <strong>合法的</strong> 。</p>
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<p>请你返回 <code>word1</code> 中 <strong>合法</strong> <span data-keyword="substring-nonempty">子字符串</span> 的数目。</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><span class="example-io"><b>输入：</b>word1 = "bcca", word2 = "abc"</span></p>
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<p><span class="example-io"><b>输出：</b>1</span></p>
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<p><strong>解释：</strong></p>
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<p>唯一合法的子字符串是 <code>"bcca"</code> ，可以重新排列得到 <code>"abcc"</code> ，<code>"abc"</code> 是它的前缀。</p>
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</div>
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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><span class="example-io"><b>输入：</b>word1 = "abcabc", word2 = "abc"</span></p>
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<p><span class="example-io"><b>输出：</b>10</span></p>
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<p><strong>解释：</strong></p>
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<p>除了长度为 1 和 2 的所有子字符串都是合法的。</p>
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</div>
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<p><strong class="example">示例 3：</strong></p>
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<div class="example-block">
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<p><span class="example-io"><b>输入：</b>word1 = "abcabc", word2 = "aaabc"</span></p>
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<p><span class="example-io"><b>输出：</b>0</span></p>
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</div>
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<p> </p>
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<p><strong>解释：</strong></p>
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<ul>
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<li><code>1 <= word1.length <= 10<sup>5</sup></code></li>
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<li><code>1 <= word2.length <= 10<sup>4</sup></code></li>
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<li><code>word1</code> 和 <code>word2</code> 都只包含小写英文字母。</li>
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</ul>
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<p>给你两个字符串 <code>word1</code> 和 <code>word2</code> 。</p>
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<p>如果一个字符串 <code>x</code> 重新排列后，<code>word2</code> 是重排字符串的 <span data-keyword="string-prefix">前缀</span> ，那么我们称字符串 <code>x</code> 是 <strong>合法的</strong> 。</p>
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<p>请你返回 <code>word1</code> 中 <strong>合法</strong> <span data-keyword="substring-nonempty">子字符串</span> 的数目。</p>
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<p><strong>注意</strong> ，这个问题中的内存限制比其他题目要 <strong>小</strong> ，所以你 <strong>必须</strong> 实现一个线性复杂度的解法。</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><span class="example-io"><b>输入：</b>word1 = "bcca", word2 = "abc"</span></p>
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<p><span class="example-io"><b>输出：</b>1</span></p>
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<p><strong>解释：</strong></p>
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<p>唯一合法的子字符串是 <code>"bcca"</code> ，可以重新排列得到 <code>"abcc"</code> ，<code>"abc"</code> 是它的前缀。</p>
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</div>
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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><span class="example-io"><b>输入：</b>word1 = "abcabc", word2 = "abc"</span></p>
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<p><span class="example-io"><b>输出：</b>10</span></p>
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<p><strong>解释：</strong></p>
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<p>除了长度为 1 和 2 的所有子字符串都是合法的。</p>
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</div>
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<p><strong class="example">示例 3：</strong></p>
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<div class="example-block">
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<p><span class="example-io"><b>输入：</b>word1 = "abcabc", word2 = "aaabc"</span></p>
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<p><span class="example-io"><b>输出：</b>0</span></p>
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</div>
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<p> </p>
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<p><strong>解释：</strong></p>
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<ul>
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<li><code>1 <= word1.length <= 10<sup>6</sup></code></li>
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<li><code>1 <= word2.length <= 10<sup>4</sup></code></li>
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<li><code>word1</code> 和 <code>word2</code> 都只包含小写英文字母。</li>
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</ul>
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