{"id":1235,"date":"2023-01-03T08:11:05","date_gmt":"2023-01-03T00:11:05","guid":{"rendered":"http:\/\/www.type59magictank.space\/?p=1235"},"modified":"2023-01-03T08:11:06","modified_gmt":"2023-01-03T00:11:06","slug":"leetcode-1114-%e6%8c%89%e5%ba%8f%e6%89%93%e5%8d%b0","status":"publish","type":"post","link":"https:\/\/www.type59magictank.space\/index.php\/2023\/01\/03\/leetcode-1114-%e6%8c%89%e5%ba%8f%e6%89%93%e5%8d%b0\/","title":{"rendered":"LeetCode 1114.\u6309\u5e8f\u6253\u5370"},"content":{"rendered":"\n<p>\u4e00\u9053\u591a\u7ebf\u7a0b\u540c\u6b65\u9898\uff0ca\u5b8c\u6210\u4e4b\u540e\u8fd0\u884cb\uff0c\u4e4b\u524d\u53ea\u5728\u64cd\u4f5c\u7cfb\u7edf\u5b66\u8fc7\u4fe1\u53f7\u91cf\u4ee5\u53ca\u76f8\u5173\u7684PV\u64cd\u4f5c\uff0c\u5e76\u6ca1\u6709\u8fdb\u884c\u8fc7\u5b9e\u9645\u64cd\u4f5c\uff0c\u8fd9\u4e0b\u521a\u597d\u505a\u4e0b\u5b9e\u9a8c\u3002leetcode\u7684c++\u5e93\u91cc\u6ca1\u6709semaphore\u5934\u6587\u4ef6\uff0c\u6240\u4ee5\u5c31\u7528\u4e86c++11\u5e26\u7684\u4e92\u65a5\u4fe1\u53f7\u91cfmutex\u5b9e\u73b0\u3002\u521d\u59cb\u5316\u7684mutex\u4fe1\u53f7\u91cf\u5904\u4e8eunlock\u72b6\u6001\uff0c\u4e24\u4e2a\u51fd\u6570.lock()\u548c.unlock()\uff0c\u76f8\u5f53\u4e8eP\u548cV.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Foo {\r\npublic:\r\n    mutex a,b;\r\n    Foo() {\r\n        a.lock(),b.lock();\r\n    }\r\n\r\n    void first(function&lt;void()> printFirst) {\r\n        \r\n        \/\/ printFirst() outputs \"first\". Do not change or remove this line.\r\n        printFirst();\r\n        a.unlock();\r\n    }\r\n\r\n    void second(function&lt;void()> printSecond) {\r\n        a.lock();\r\n        \/\/ printSecond() outputs \"second\". Do not change or remove this line.\r\n        printSecond();\r\n        b.unlock();\r\n    }\r\n\r\n    void third(function&lt;void()> printThird) {\r\n        b.lock();\r\n        \/\/ printThird() outputs \"third\". Do not change or remove this line.\r\n        printThird();\r\n    }\r\n};<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u9053\u591a\u7ebf\u7a0b\u540c\u6b65\u9898\uff0ca\u5b8c\u6210\u4e4b\u540e\u8fd0\u884cb\uff0c\u4e4b\u524d\u53ea\u5728\u64cd\u4f5c\u7cfb\u7edf\u5b66\u8fc7\u4fe1\u53f7\u91cf\u4ee5\u53ca\u76f8\u5173\u7684PV\u64cd\u4f5c\uff0c\u5e76\u6ca1\u6709\u8fdb\u884c\u8fc7\u5b9e\u9645\u64cd &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,26],"tags":[],"class_list":["post-1235","post","type-post","status-publish","format-standard","hentry","category-leetcode","category-26"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LeetCode 1114.\u6309\u5e8f\u6253\u5370 - \u6f2b\u6f2b\u5b66\u4e60\u8def<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.type59magictank.space\/index.php\/2023\/01\/03\/leetcode-1114-\u6309\u5e8f\u6253\u5370\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LeetCode 1114.\u6309\u5e8f\u6253\u5370 - 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