update

leetcode-cn/originData/z1R5dt.json

@@ -12,7 +12,7 @@
             "translatedContent": "<p>实现一个 <code>MapSum</code> 类，支持两个方法，<code>insert</code>&nbsp;和&nbsp;<code>sum</code>：</p>\n\n<ul>\n\t<li><code>MapSum()</code> 初始化 <code>MapSum</code> 对象</li>\n\t<li><code>void insert(String key, int val)</code> 插入 <code>key-val</code> 键值对，字符串表示键 <code>key</code> ，整数表示值 <code>val</code> 。如果键 <code>key</code> 已经存在，那么原来的键值对将被替代成新的键值对。</li>\n\t<li><code>int sum(string prefix)</code> 返回所有以该前缀 <code>prefix</code> 开头的键 <code>key</code> 的值的总和。</li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><strong>示例：</strong></p>\n\n<pre>\n<strong>输入：</strong>\ninputs = [&quot;MapSum&quot;, &quot;insert&quot;, &quot;sum&quot;, &quot;insert&quot;, &quot;sum&quot;]\ninputs = [[], [&quot;apple&quot;, 3], [&quot;ap&quot;], [&quot;app&quot;, 2], [&quot;ap&quot;]]\n<strong>输出：</strong>\n[null, null, 3, null, 5]\n\n<strong>解释：</strong>\nMapSum mapSum = new MapSum();\nmapSum.insert(&quot;apple&quot;, 3);  \nmapSum.sum(&quot;ap&quot;);           // return 3 (<u>ap</u>ple = 3)\nmapSum.insert(&quot;app&quot;, 2);    \nmapSum.sum(&quot;ap&quot;);           // return 5 (<u>ap</u>ple + <u>ap</u>p = 3 + 2 = 5)\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= key.length, prefix.length &lt;= 50</code></li>\n\t<li><code>key</code> 和 <code>prefix</code> 仅由小写英文字母组成</li>\n\t<li><code>1 &lt;= val &lt;= 1000</code></li>\n\t<li>最多调用 <code>50</code> 次 <code>insert</code> 和 <code>sum</code></li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><meta charset=\"UTF-8\" />注意：本题与主站 677&nbsp;题相同：&nbsp;<a href=\"https://leetcode-cn.com/problems/map-sum-pairs/\">https://leetcode-cn.com/problems/map-sum-pairs/</a></p>\n",
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             "difficulty": "Medium",
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