{"id":731,"date":"2020-09-26T11:15:34","date_gmt":"2020-09-26T03:15:34","guid":{"rendered":"http:\/\/39.96.58.60\/?p=731"},"modified":"2022-10-18T16:37:28","modified_gmt":"2022-10-18T08:37:28","slug":"leetcode-20-%e6%9c%89%e6%95%88%e7%9a%84%e6%8b%ac%e5%8f%b7","status":"publish","type":"post","link":"http:\/\/www.yatenglg.cn\/blog\/?p=731","title":{"rendered":"Leetcode 20. \u6709\u6548\u7684\u62ec\u53f7"},"content":{"rendered":"<p>\u7ed9\u5b9a\u4e00\u4e2a\u53ea\u5305\u62ec <code>'('<\/code>\uff0c<code>')'<\/code>\uff0c<code>'{'<\/code>\uff0c<code>'}'<\/code>\uff0c<code>'['<\/code>\uff0c<code>']'<\/code>&nbsp;\u7684\u5b57\u7b26\u4e32\uff0c\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u6709\u6548\u3002<\/p>\n<p>\u6709\u6548\u5b57\u7b26\u4e32\u9700\u6ee1\u8db3\uff1a<\/p>\n<ol>\n<li>\u5de6\u62ec\u53f7\u5fc5\u987b\u7528\u76f8\u540c\u7c7b\u578b\u7684\u53f3\u62ec\u53f7\u95ed\u5408\u3002<\/li>\n<li>\u5de6\u62ec\u53f7\u5fc5\u987b\u4ee5\u6b63\u786e\u7684\u987a\u5e8f\u95ed\u5408\u3002<\/li>\n<\/ol>\n<p>\u6ce8\u610f\u7a7a\u5b57\u7b26\u4e32\u53ef\u88ab\u8ba4\u4e3a\u662f\u6709\u6548\u5b57\u7b26\u4e32\u3002<\/p>\n<p><strong>\u793a\u4f8b 1:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> \"()\"\n\n<strong>\u8f93\u51fa:<\/strong> true\n\n<\/pre>\n<p><strong>\u793a\u4f8b&nbsp;2:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> \"()[]{}\"\n\n<strong>\u8f93\u51fa:<\/strong> true\n\n<\/pre>\n<p><strong>\u793a\u4f8b&nbsp;3:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> \"(]\"\n\n<strong>\u8f93\u51fa:<\/strong> false\n\n<\/pre>\n<p><strong>\u793a\u4f8b&nbsp;4:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> \"([)]\"\n\n<strong>\u8f93\u51fa:<\/strong> false\n\n<\/pre>\n<p><strong>\u793a\u4f8b&nbsp;5:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> \"{[]}\"\n\n<strong>\u8f93\u51fa:<\/strong> true<\/pre>\n<p>**\u96be\u5ea6**: Easy<\/p>\n<p>**\u6807\u7b7e**: \u6808\u3001 \u5b57\u7b26\u4e32\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\uff1a40 ms, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8677.59% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a13.7 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8662.39% \u7684\u7528\u6237\n\n\u89e3\u9898\u601d\u8def\uff1a\n    \u6808\uff0c\u4f7f\u7528\u5217\u8868\u6a21\u62df\u8fdb\u6808\u51fa\u6808\u64cd\u4f5c\n\"\"\"\n\nclass Solution:\n    def isValid(self, s: str) -&gt; bool:\n        l_r = {'(': ')', '{': '}', '[': ']'}\n        record = []\n        for c in s:\n            if c == ' ':\n                continue\n            if c == '(':\n                record.append('(')\n            elif c == '[':\n                record.append('[')\n            elif c == '{':\n                record.append('{')\n            else:\n                if record:\n                    r_ = record.pop()\n                    if l_r[r_] != c:\n                        print(r_, '==', c)\n                        return False\n                else:\n                    return False\n        if record == []:\n            return True\n        else:\n            return False<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7ed9\u5b9a\u4e00\u4e2a\u53ea\u5305\u62ec &#8216;(&#8216;\uff0c&#8217;)&#8217;\uff0c'{&#8216;\uff0c&#8217;}&#8217;\uff0c'[&#8216;\uff0c&#8217;]&#8217;&nbsp;\u7684\u5b57\u7b26\u4e32\uff0c\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u6709\u6548\u3002 \u6709\u6548&#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\/731"}],"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=731"}],"version-history":[{"count":1,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/731\/revisions"}],"predecessor-version":[{"id":732,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/731\/revisions\/732"}],"wp:attachment":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=731"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}