{"id":1134,"date":"2015-06-28T23:06:03","date_gmt":"2015-06-28T15:06:03","guid":{"rendered":"http:\/\/www.shuizilong.com\/house\/?p=1134"},"modified":"2015-06-28T23:06:03","modified_gmt":"2015-06-28T15:06:03","slug":"leetcode-22-generate-parentheses","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/leetcode-22-generate-parentheses\/","title":{"rendered":"LeetCode 22. Generate Parentheses"},"content":{"rendered":"<p><!--more--><br \/>\nhttps:\/\/leetcode.com\/problems\/generate-parentheses\/<br \/>\n\u66b4\u641c\u3002\u3002<br \/>\nC++:<br \/>\n[C++]<br \/>\nvoid dfs(int n, int a, vector<string>&#038; z, string&#038; s){<br \/>\n    if (n == a){<br \/>\n        for (int i=0;i<n;++i) s.push_back(')');\n        z.push_back(s);\n        for (int i=0;i<n;++i) s.pop_back();\n    }\n    else{\n        if (a){\n            s.push_back(')'); \n            dfs(n-1,a-1,z,s);\n            s.pop_back();\n        }\n        s.push_back('(');\n        dfs(n-1,a+1,z,s);\n        s.pop_back();\n    }\n}\n\nclass Solution {\npublic:\n    vector<string> generateParenthesis(int n) {<br \/>\n        vector<string> z; string s; dfs(n*2, 0, z, s);<br \/>\n        return z;<br \/>\n    }<br \/>\n};<br \/>\n[\/cpp]<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[142],"tags":[],"class_list":["post-1134","post","type-post","status-publish","format-standard","hentry","category-leetcode"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-ii","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/1134","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/comments?post=1134"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/1134\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=1134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=1134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=1134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}