{"id":577,"date":"2020-09-26T10:59:31","date_gmt":"2020-09-26T02:59:31","guid":{"rendered":"http:\/\/39.96.58.60\/?p=577"},"modified":"2022-10-18T16:38:45","modified_gmt":"2022-10-18T08:38:45","slug":"leetcode-763-%e5%88%92%e5%88%86%e5%ad%97%e6%af%8d%e5%8c%ba%e9%97%b4","status":"publish","type":"post","link":"https:\/\/www.yatenglg.cn\/blog\/?p=577","title":{"rendered":"Leetcode 763. \u5212\u5206\u5b57\u6bcd\u533a\u95f4"},"content":{"rendered":"<p>\u5b57\u7b26\u4e32 <code>S<\/code> \u7531\u5c0f\u5199\u5b57\u6bcd\u7ec4\u6210\u3002\u6211\u4eec\u8981\u628a\u8fd9\u4e2a\u5b57\u7b26\u4e32\u5212\u5206\u4e3a\u5c3d\u53ef\u80fd\u591a\u7684\u7247\u6bb5\uff0c\u540c\u4e00\u4e2a\u5b57\u6bcd\u53ea\u4f1a\u51fa\u73b0\u5728\u5176\u4e2d\u7684\u4e00\u4e2a\u7247\u6bb5\u3002\u8fd4\u56de\u4e00\u4e2a\u8868\u793a\u6bcf\u4e2a\u5b57\u7b26\u4e32\u7247\u6bb5\u7684\u957f\u5ea6\u7684\u5217\u8868\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u793a\u4f8b 1\uff1a<\/strong><\/p>\n<pre><strong>\u8f93\u5165\uff1a<\/strong>S = \"ababcbacadefegdehijhklij\"\n\n<strong>\u8f93\u51fa\uff1a<\/strong>[9,7,8]\n\n<strong>\u89e3\u91ca\uff1a<\/strong>\n\n\u5212\u5206\u7ed3\u679c\u4e3a \"ababcbaca\", \"defegde\", \"hijhklij\"\u3002\n\n\u6bcf\u4e2a\u5b57\u6bcd\u6700\u591a\u51fa\u73b0\u5728\u4e00\u4e2a\u7247\u6bb5\u4e2d\u3002\n\n\u50cf \"ababcbacadefegde\", \"hijhklij\" \u7684\u5212\u5206\u662f\u9519\u8bef\u7684\uff0c\u56e0\u4e3a\u5212\u5206\u7684\u7247\u6bb5\u6570\u8f83\u5c11\u3002\n\n<\/pre>\n<p>&nbsp;<\/p>\n<p><strong>\u63d0\u793a\uff1a<\/strong><\/p>\n<ul>\n<li><code>S<\/code>\u7684\u957f\u5ea6\u5728<code>[1, 500]<\/code>\u4e4b\u95f4\u3002<\/li>\n<li><code>S<\/code>\u53ea\u5305\u542b\u5c0f\u5199\u5b57\u6bcd <code>'a'<\/code> \u5230 <code>'z'<\/code> \u3002<\/li>\n<\/ul>\n<p>**\u96be\u5ea6**: Medium<\/p>\n<p>**\u6807\u7b7e**: \u8d2a\u5fc3\u7b97\u6cd5\u3001 \u53cc\u6307\u9488\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\u4e8699.21% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a13.5 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e865.01% \u7684\u7528\u6237\n\n\u89e3\u9898\u601d\u8def:\n    \u5177\u4f53\u5b9e\u73b0\u89c1\u4ee3\u7801\u6ce8\u91ca\n\"\"\"\nclass Solution:\n    def partitionLabels(self, S: str) -&gt; List[int]:\n        record = {}\n        for i in range(len(S)-1, -1, -1):   # \u5148\u904d\u5386\u5b57\u7b26\u4e32\uff0c\u7edf\u8ba1\u5404\u5b57\u7b26\u51fa\u73b0\u7684\u6700\u540e\u4f4d\u7f6e\n            if S[i] not in record:\n                record[S[i]] = i\n\n        result =[]\n        start, end = 0, 0   # \u5f53\u524d\u5212\u5206\u533a\u95f4\u7684 \u8d77\u59cb\u4e0e\u7ed3\u675f\n        for i, c in enumerate(S):\n            end = max(end, record[c])   # \u5f53\u524d\u533a\u95f4\u7684\u7ed3\u675f \u4ee5\u5f53\u524d\u533a\u95f4\u5b57\u7b26\u7684\u6700\u540e\u4f4d\u7f6e\u4e3a\u51c6\n            if i == end:    # \u5982\u904d\u5386\u5230\u5f53\u524d\u533a\u95f4\u5185\u5b57\u7b26\u7684\u6700\u540e\u4f4d\u7f6e\uff0c\u5219\u5f53\u524d\u533a\u95f4\u4e3a\u4e00\u4e2a\u53ef\u5212\u5206\u533a\u95f4\n                result.append(end-start+1)\n                start = i+1 # \u5212\u5206\u533a\u95f4\u540e\uff0c\u4e0b\u6b21\u5212\u5206\u7684\u5176\u5b9estart\u9700\u8981\u79fb\u52a8\n        return result<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5b57\u7b26\u4e32 S \u7531\u5c0f\u5199\u5b57\u6bcd\u7ec4\u6210\u3002\u6211\u4eec\u8981\u628a\u8fd9\u4e2a\u5b57\u7b26\u4e32\u5212\u5206\u4e3a\u5c3d\u53ef\u80fd\u591a\u7684\u7247\u6bb5\uff0c\u540c\u4e00\u4e2a\u5b57\u6bcd\u53ea\u4f1a\u51fa\u73b0\u5728\u5176\u4e2d\u7684\u4e00\u4e2a\u7247\u6bb5\u3002\u8fd4\u56de\u4e00&#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":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/577"}],"collection":[{"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=577"}],"version-history":[{"count":1,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/577\/revisions"}],"predecessor-version":[{"id":578,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/577\/revisions\/578"}],"wp:attachment":[{"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}