{"id":415,"date":"2020-09-26T10:38:57","date_gmt":"2020-09-26T02:38:57","guid":{"rendered":"http:\/\/39.96.58.60\/?p=415"},"modified":"2022-10-18T16:39:24","modified_gmt":"2022-10-18T08:39:24","slug":"leetcode-1002-%e6%9f%a5%e6%89%be%e5%b8%b8%e7%94%a8%e5%ad%97%e7%ac%a6","status":"publish","type":"post","link":"http:\/\/www.yatenglg.cn\/blog\/?p=415","title":{"rendered":"Leetcode 1002. \u67e5\u627e\u5e38\u7528\u5b57\u7b26"},"content":{"rendered":"<p>\u7ed9\u5b9a\u4ec5\u6709\u5c0f\u5199\u5b57\u6bcd\u7ec4\u6210\u7684\u5b57\u7b26\u4e32\u6570\u7ec4 <code>A<\/code>\uff0c\u8fd4\u56de\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\u4e32\u4e2d\u90fd\u663e\u793a\u7684\u5168\u90e8\u5b57\u7b26\uff08<strong>\u5305\u62ec\u91cd\u590d\u5b57\u7b26<\/strong>\uff09\u7ec4\u6210\u7684\u5217\u8868\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4e00\u4e2a\u5b57\u7b26\u5728\u6bcf\u4e2a\u5b57\u7b26\u4e32\u4e2d\u51fa\u73b0 3 \u6b21\uff0c\u4f46\u4e0d\u662f 4 \u6b21\uff0c\u5219\u9700\u8981\u5728\u6700\u7ec8\u7b54\u6848\u4e2d\u5305\u542b\u8be5\u5b57\u7b26 3 \u6b21\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u6309\u4efb\u610f\u987a\u5e8f\u8fd4\u56de\u7b54\u6848\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u793a\u4f8b 1\uff1a<\/strong><\/p>\n<pre><strong>\u8f93\u5165\uff1a<\/strong>[\"bella\",\"label\",\"roller\"]\n\n<strong>\u8f93\u51fa\uff1a<\/strong>[\"e\",\"l\",\"l\"]\n\n<\/pre>\n<p><strong>\u793a\u4f8b 2\uff1a<\/strong><\/p>\n<pre><strong>\u8f93\u5165\uff1a<\/strong>[\"cool\",\"lock\",\"cook\"]\n\n<strong>\u8f93\u51fa\uff1a<\/strong>[\"c\",\"o\"]\n\n<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>\u63d0\u793a\uff1a<\/strong><\/p>\n<ol>\n<li><code>1 &lt;= A.length &lt;= 100<\/code><\/li>\n<li><code>1 &lt;= A[i].length &lt;= 100<\/code><\/li>\n<li><code>A[i][j]<\/code> \u662f\u5c0f\u5199\u5b57\u6bcd<\/li>\n<\/ol>\n<p>**\u96be\u5ea6**: Easy<\/p>\n<p>**\u6807\u7b7e**: \u6570\u7ec4\u3001 \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\uff1a56 ms, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8676.09% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a13.6 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e865.57% \u7684\u7528\u6237\n\n\u89e3\u9898\u601d\u8def\uff1a\n    \u4f7f\u7528\u5b57\u5178\uff0c\u8bb0\u5f55\u6bcf\u6b21\n\"\"\"\n\nclass Solution:\n    def commonChars(self, A: List[str]) -&gt; List[str]:\n        record = {i: float('inf') for i in 'abcdefghijklmnopqrstuvwxyz'}    # \u7528\u4e8e\u8bb0\u5f55\u5404\u5b57\u7b26\u51fa\u73b0\u6b21\u6570\n        for a in A:\n            record_now = {} # \u5f53\u524d\u5355\u8bcd\u5404\u5b57\u7b26\u51fa\u73b0\u6b21\u6570\n            for i in a:\n                if i in record_now:\n                    record_now[i] += 1\n                else:\n                    record_now[i] = 1\n            record = {i:min(n, record_now[i]) for i,n in record.items() if i in record_now} # \u6bd4\u8f83\u5f53\u524d\u5355\u8bcd\u5b57\u7b26\u51fa\u73b0\u6b21\u6570\uff0c\u66f4\u65b0record\n\n        return [i for i,n in record.items() for _ in range(n)]<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7ed9\u5b9a\u4ec5\u6709\u5c0f\u5199\u5b57\u6bcd\u7ec4\u6210\u7684\u5b57\u7b26\u4e32\u6570\u7ec4 A\uff0c\u8fd4\u56de\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\u4e32\u4e2d\u90fd\u663e\u793a\u7684\u5168\u90e8\u5b57\u7b26\uff08\u5305\u62ec\u91cd\u590d\u5b57\u7b26\uff09\u7ec4\u6210\u7684\u5217\u8868\u3002\u4f8b\u5982&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","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\/415"}],"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=415"}],"version-history":[{"count":1,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/415\/revisions"}],"predecessor-version":[{"id":416,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/415\/revisions\/416"}],"wp:attachment":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=415"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}