{"id":441,"date":"2023-01-19T22:10:59","date_gmt":"2023-01-19T14:10:59","guid":{"rendered":"https:\/\/blog.cirno.fun\/?p=441"},"modified":"2024-09-12T09:29:41","modified_gmt":"2024-09-12T01:29:41","slug":"%e5%8d%a1%e7%89%b9%e5%85%b0%e6%95%b0","status":"publish","type":"post","link":"https:\/\/blog.sssn.tech\/?p=441","title":{"rendered":"\u5361\u7279\u5170\u6570"},"content":{"rendered":"

\u5361\u7279\u5170\u6570\u662f\u7ec4\u5408\u6570\u5b66\u4e2d\u975e\u5e38\u6709\u8da3\u4e14\u5f15\u7528\u5e7f\u6cdb\u7684\u6570\u5217\uff0c\u5176\u5ef6\u4f38\u95ee\u9898\u53ef\u4ee5\u5e94\u7528\u4e8e\u5404\u79cd\u5947\u602a\u7684\u7ec4\u5408\u95ee\u9898\u4e0a<\/p>\n

\u6211\u4eec\u7528\u4e00\u4e2a\u5b9e\u4f8b\u6765\u5f15\u5165\u5361\u7279\u5170\u6570<\/p>\n

\"file\"<\/p>\n

\u5728\u5982\u56fe\u7684\u5750\u6807\u7f51\u683c\u4e2d\uff0c\u89c4\u5b9a\u6211\u4eec\u5728\u4efb\u610f\u4e00\u70b9(x, y)\u53ea\u80fd\u5411\u53f3\u6216\u8005\u5411\u4e0a\u79fb\u52a8\uff0c\u5219\u6211\u4eec\u4eceA\u70b9(0, 0)\u8d70\u5230B\u70b9(5, 5)\u7684\u8def\u5f84\u4e2d\uff0c\u4e0d\u8de8\u8fc7\u7ea2\u8272\u5bf9\u89d2\u7ebf(\u5373\u4e0d\u89e6\u78b0\u7eff\u7ebf)<\/strong>\u7684\u8d70\u6cd5\u6709\u591a\u5c11\u79cd\uff1f<\/p>\n

\u6211\u4eec\u629b\u53bb\u9650\u5236\uff0c\u5982\u679c\u5728\u4e00\u4e2a\u5982\u56fe\u7684\u7f51\u683c\u4e2d\uff0c\u4eceA\u5230B\u7684\u8d70\u6cd5\u79cd\u7c7b\u5e94\u8be5\u662f<\/p>\n

10 \\choose 5<\/code><\/pre>\n
\u5206\u6790\u4e0d\u96be\u53d1\u73b0\uff0c\u4e00\u5171\u9700\u8981\u8d70\u5341\u6b65\uff0c\u5176\u4e2d\u4e94\u6b65\u5411\u4e0a\uff0c\u4e94\u6b65\u5411\u53f3 \u8fd9\u662f\u4e00\u4e2a\u6392\u5217\u95ee\u9898\uff0c\u6211\u4eec\u53ea\u9700\u8ba9\u8fd9\u5341\u6b65\u4e2d\u4efb\u610f\u4e94\u6b65\u5411\u4e0a\uff0c\u5269\u4f59\u7684\u4e94\u6b65\u4fbf\u53ef\u5411\u53f3\uff0c\u6240\u4ee5\u8d70\u6cd5\u79cd\u7c7b\u670910\u90095\u79cd<\/p>\n
\u5f53\u6211\u4eec\u52a0\u5165\u4e86\u7ea2\u8272\u5bf9\u89d2\u7ebf\uff0c\u65b9\u6848\u6570\u5c31\u88ab\u524a\u51cf\u4e86\u4e00\u90e8\u5206\uff0c\u6211\u4eec\u5e0c\u671b\u6c42\u51fa\u88ab\u524a\u51cf\u7684\u90a3\u4e00\u90e8\u5206\u65b9\u6848\u6570\uff0c\u5219\u53ef\u4ee5\u901a\u8fc7\u4ed6\u95f4\u63a5\u6c42\u51fa\u7b26\u5408\u9898\u76ee\u8981\u6c42\u7684\u5269\u4f59\u65b9\u6848\u6570<\/p>\n
\u753b\u51fa\u7eff\u8272\u7ebf\u540e\uff0c\u6211\u4eec\u5f97\u5230\u4e86B\uff085\uff0c 5\uff09\u5173\u4e8e\u4e0d\u53ef\u89e6\u6478<\/strong>\u7684\u7eff\u7ebf\u7684\u5bf9\u79f0\u70b9B\\’\uff084\uff0c 6\uff09<\/p>\n
\u6b64\u65f6\u5bf9\u4e8e\u4efb\u610f\u4e00\u6761\u975e\u6cd5\u7684\u7ea2\u8272\u8def\u5f84\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u8def\u5f84\u89e6\u6478\u7eff\u8272\u7ebf\u540e\u7684\u90e8\u5206\u5173\u4e8e\u7eff\u7ebf\u505a\u8f74\u5bf9\u79f0\uff0c\u5f97\u5230\u84dd\u8272\u8def\u5f84<\/p>\n
\u6839\u636e\u5bf9\u79f0\u5173\u7cfb\uff0c\u6211\u4eec\u4e0d\u96be\u5f97\u77e5\u4efb\u610f\u4e00\u6761\u975e\u6cd5\u5230\u8fbeB\u70b9\u7684\u8def\u5f84\u90fd\u53ef\u4ee5\u627e\u5230\u5bf9\u5e94\u4e00\u6761\u5230\u8fbeB\\’\u7684\u84dd\u8272\u8def\u5f84\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u975e\u6cd5\u5230\u8fbeB\u70b9\u7684\u8def\u5f84\u548c\u5230\u8fbeB\\’\u70b9\u7684\u8def\u5f84\u662f\u4e00\u4e00\u5bf9\u5e94\u7684\uff0c\u6240\u4ee5\u4e24\u8005\u4e2a\u6570\u76f8\u540c<\/p>\n
\u6b64\u65f6\u5230\u8fbeB\u70b9\u7684\u5408\u6cd5\u8def\u5f84\u6570\u81ea\u7136\u662f\u6240\u6709\u8def\u5f84\u51cf\u53bb\u975e\u6cd5\u8def\u5f84<\/p>\n
{10 \\choose 5} - {10 \\choose 4}<\/code><\/pre>\n
\u4e0a\u5f0f\u7ecf\u8fc7\u7b80\u5355\u5316\u7b80\u53ef\u4ee5\u5f97\u5230<\/p>\n
{2n \\choose n} \\cdot \\frac{1}{n + 1}<\/code><\/pre>\n
\u5728\u4e0a\u4f8b\u4e2d\uff0cn = 5<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5361\u7279\u5170\u6570\u662f\u7ec4\u5408\u6570\u5b66\u4e2d\u975e\u5e38\u6709\u8da3\u4e14\u5f15\u7528\u5e7f\u6cdb\u7684\u6570\u5217\uff0c\u5176\u5ef6\u4f38\u95ee\u9898\u53ef\u4ee5\u5e94\u7528\u4e8e\u5404\u79cd\u5947\u602a\u7684\u7ec4\u5408 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,16],"tags":[],"class_list":["post-441","post","type-post","status-publish","format-standard","hentry","category-13","category-16"],"_links":{"self":[{"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/posts\/441","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=441"}],"version-history":[{"count":1,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/posts\/441\/revisions"}],"predecessor-version":[{"id":729,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/posts\/441\/revisions\/729"}],"wp:attachment":[{"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=441"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=441"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}