{"id":2364,"date":"2022-01-25T10:59:32","date_gmt":"2022-01-25T02:59:32","guid":{"rendered":"http:\/\/139.9.1.231\/?p=2364"},"modified":"2022-01-25T10:59:33","modified_gmt":"2022-01-25T02:59:33","slug":"leetodeday77","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2022\/01\/25\/leetodeday77\/","title":{"rendered":"leetodeday77 –\u7ec4\u5408"},"content":{"rendered":"\n

\u7ed9\u5b9a\u4e24\u4e2a\u6574\u6570 n<\/code> \u548c k<\/code>\uff0c\u8fd4\u56de\u8303\u56f4 [1, n]<\/code> \u4e2d\u6240\u6709\u53ef\u80fd\u7684 k<\/code> \u4e2a\u6570\u7684\u7ec4\u5408\u3002<\/p>\n\n\n\n

\u4f60\u53ef\u4ee5\u6309 \u4efb\u4f55\u987a\u5e8f<\/strong> \u8fd4\u56de\u7b54\u6848\u3002<\/p>\n\n\n\n

\u793a\u4f8b 1\uff1a<\/strong><\/p>\n\n\n\n

\u8f93\u5165\uff1a<\/strong>n = 4, k = 2\n\u8f93\u51fa\uff1a<\/strong>\n[\n  [2,4],\n  [3,4],\n  [2,3],\n  [1,2],\n  [1,3],\n  [1,4],\n]<\/code><\/pre>\n\n\n\n
\u793a\u4f8b 2\uff1a<\/strong><\/p>\n\n\n\n
\u8f93\u5165\uff1a<\/strong>n = 1, k = 1\n\u8f93\u51fa\uff1a<\/strong>[[1]]<\/code><\/pre>\n\n\n\n
<\/p>\n\n\n\n
\u9012\u5f52\u5b9e\u73b0\uff1a<\/p>\n\n\n\n
\u6613\u9519\u70b9\uff1a re=copy.deepcopy(rev)  \u9700\u8981\u6df1\u62f7\u8d1d<\/p>\n\n\n\n
# @lc app=leetcode.cn id=77 lang=python3\r\n#\r\n# [77] \u7ec4\u5408\r\n#\r\n#\u9012\u5f52\uff1a\r\n# @lc code=start\r\nclass Solution:\r\n    def combine(self, n: int, k: int) -> List[List[int]]:\r\nclass Solution:\r\n    def combine(self, n: int, k: int) -> List[List[int]]:\r\n        rev=list()\r\n        res=list()\r\n        import copy\r\n        def f(n,k):\r\n            if k==0:\r\n                re=copy.deepcopy(rev)\r\n                res.append(re)\r\n                return \r\n\r\n            else:\r\n              for i in range(n,k-1,-1):\r\n                  rev.append(i)\r\n                  f(i-1,k-1)\r\n                  rev.pop()\r\n        f(n,k)\r\n        return res<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
\u7ed9\u5b9a\u4e24\u4e2a\u6574\u6570 n \u548c k\uff0c\u8fd4\u56de\u8303\u56f4 [1, n] \u4e2d\u6240\u6709\u53ef\u80fd … \u7ee7\u7eed\u9605\u8bfbleetodeday77 –\u7ec4\u5408<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/2364"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=2364"}],"version-history":[{"count":6,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/2364\/revisions"}],"predecessor-version":[{"id":2371,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/2364\/revisions\/2371"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=2364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=2364"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=2364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}