{"id":469,"date":"2020-09-26T10:45:22","date_gmt":"2020-09-26T02:45:22","guid":{"rendered":"http:\/\/39.96.58.60\/?p=469"},"modified":"2022-10-18T16:39:14","modified_gmt":"2022-10-18T08:39:14","slug":"leetcode-771-%e5%ae%9d%e7%9f%b3%e4%b8%8e%e7%9f%b3%e5%a4%b4","status":"publish","type":"post","link":"http:\/\/www.yatenglg.cn\/blog\/?p=469","title":{"rendered":"Leetcode 771. \u5b9d\u77f3\u4e0e\u77f3\u5934"},"content":{"rendered":"<p>&nbsp;\u7ed9\u5b9a\u5b57\u7b26\u4e32<code>J<\/code>&nbsp;\u4ee3\u8868\u77f3\u5934\u4e2d\u5b9d\u77f3\u7684\u7c7b\u578b\uff0c\u548c\u5b57\u7b26\u4e32&nbsp;<code>S<\/code>\u4ee3\u8868\u4f60\u62e5\u6709\u7684\u77f3\u5934\u3002&nbsp;<code>S<\/code>&nbsp;\u4e2d\u6bcf\u4e2a\u5b57\u7b26\u4ee3\u8868\u4e86\u4e00\u79cd\u4f60\u62e5\u6709\u7684\u77f3\u5934\u7684\u7c7b\u578b\uff0c\u4f60\u60f3\u77e5\u9053\u4f60\u62e5\u6709\u7684\u77f3\u5934\u4e2d\u6709\u591a\u5c11\u662f\u5b9d\u77f3\u3002<\/p>\n<p><code>J<\/code>&nbsp;\u4e2d\u7684\u5b57\u6bcd\u4e0d\u91cd\u590d\uff0c<code>J<\/code>&nbsp;\u548c&nbsp;<code>S<\/code>\u4e2d\u7684\u6240\u6709\u5b57\u7b26\u90fd\u662f\u5b57\u6bcd\u3002\u5b57\u6bcd\u533a\u5206\u5927\u5c0f\u5199\uff0c\u56e0\u6b64<code>\"a\"<\/code>\u548c<code>\"A\"<\/code>\u662f\u4e0d\u540c\u7c7b\u578b\u7684\u77f3\u5934\u3002<\/p>\n<p><strong>\u793a\u4f8b 1:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> J = \"aA\", S = \"aAAbbbb\"\n\n<strong>\u8f93\u51fa:<\/strong> 3\n\n<\/pre>\n<p><strong>\u793a\u4f8b 2:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> J = \"z\", S = \"ZZ\"\n\n<strong>\u8f93\u51fa:<\/strong> 0\n\n<\/pre>\n<p><strong>\u6ce8\u610f:<\/strong><\/p>\n<ul>\n<li><code>S<\/code>&nbsp;\u548c&nbsp;<code>J<\/code>&nbsp;\u6700\u591a\u542b\u670950\u4e2a\u5b57\u6bcd\u3002<\/li>\n<li>&nbsp;<code>J<\/code>&nbsp;\u4e2d\u7684\u5b57\u7b26\u4e0d\u91cd\u590d\u3002<\/li>\n<\/ul>\n<p>**\u96be\u5ea6**: Easy<\/p>\n<p>**\u6807\u7b7e**: \u54c8\u5e0c\u8868\u3001<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism undefined-numbers lang-python\" data-lang=\"Python\"><code>\n# -*- coding: utf-8 -*-\n# @Author  : LG\n\n\"\"\"\n\u6267\u884c\u7528\u65f6\uff1a36 ms, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8689.80% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a13.3 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8672.55%\n\n\u89e3\u9898\u601d\u8def\uff1a\n    \u5148\u904d\u5386\u5b9d\u77f3\u7c7b\u522b\uff0c\n    \u7136\u540e\u904d\u5386\u77f3\u5934\uff0c\u7edf\u8ba1\u5404\u5b9d\u77f3\u6570\u91cf\n\"\"\"\nclass Solution:\n    def numJewelsInStones(self, J: str, S: str) -&gt; int:\n        jewel_dic = {}  # \u5404\u5b9d\u77f3\u6570\u91cf\n        for j in J:\n            jewel_dic[j] = 0    # \u904d\u5386\u5b9d\u77f3\u7c7b\u522b\uff0c\u5404\u5b9d\u77f3\u6570\u91cf\u8d77\u59cb\u4e3a0\n\n        for s in S: # \u904d\u5386\u77f3\u5934\n            if s in jewel_dic:  # \u5bf9\u5e94\u5b9d\u77f3\u6570\u91cf+1\n                jewel_dic[s] += 1\n        return sum(jewel_dic.values())<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp;\u7ed9\u5b9a\u5b57\u7b26\u4e32J&nbsp;\u4ee3\u8868\u77f3\u5934\u4e2d\u5b9d\u77f3\u7684\u7c7b\u578b\uff0c\u548c\u5b57\u7b26\u4e32&nbsp;S\u4ee3\u8868\u4f60\u62e5\u6709\u7684\u77f3\u5934\u3002&nbsp;&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/469"}],"collection":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=469"}],"version-history":[{"count":1,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/469\/revisions"}],"predecessor-version":[{"id":470,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/469\/revisions\/470"}],"wp:attachment":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=469"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}