{"id":1207,"date":"2015-09-09T00:12:14","date_gmt":"2015-09-08T16:12:14","guid":{"rendered":"http:\/\/www.shuizilong.com\/house\/?p=1207"},"modified":"2015-09-10T21:35:36","modified_gmt":"2015-09-10T13:35:36","slug":"zoj-2126-rocket-mania","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/zoj-2126-rocket-mania\/","title":{"rendered":"ZOJ 2126. Rocket Mania"},"content":{"rendered":"<p><a href=\"http:\/\/acm.bnu.edu.cn\/v3\/problem_show.php?pid=15645\">http:\/\/acm.bnu.edu.cn\/v3\/problem_show.php?pid=15645<\/a><br \/>\n<a href=\"http:\/\/cojs.tk\/cogs\/problem\/problem.php?pid=1514\">http:\/\/cojs.tk\/cogs\/problem\/problem.php?pid=1514<br \/>\n<\/a><\/p>\n<h3>Brief description: <\/h3>\n<p>\u75af\u72c2\u706b\u7bad\uff08Rocket Mania\uff09\u662f\u5e7b\u60f3\u6e38\u620f\u7cfb\u5217\u4e2d\u6211\u6700\u559c\u6b22\u7684\u6e38\u620f\u4e4b\u4e00\u3002\u5728\u8fd9\u4e2a\u6e38\u620f\u4e2d\uff0c\u5de6\u8fb9\u6709\u4e00\u4e9b\u706b\u67f4\uff0c\u53f3\u8fb9\u6709\u4e00\u4e9b\u706b\u7bad\u3002\u5728\u4e2d\u95f4\uff0c\u6709\u8bb8\u591a\u79cd\u7c7b\u7684\u5e26\u6709\u5bfc\u706b\u7d22\u7684\u683c\u5b50\u3002\u8fd9\u4e9b\u5bfc\u706b\u7d22\u53ef\u4ee5\u88ab\u65cb\u8f6c0\uff0c90\uff0c180\u6216270\u5ea6\u3002\u4e3a\u4e86\u53d1\u5c04\u706b\u7bad\uff0c\u5fc5\u987b\u7528\u5bfc\u706b\u7d22\u5f62\u6210\u4e00\u6761\u4ece\u706b\u67f4\u5230\u706b\u7bad\u7684\u8fde\u7eed\u901a\u9053\u3002\u5f53\u4e00\u6761\u5b8c\u6574\u7684\u901a\u8def\u5efa\u7acb\u7684\u65f6\u5019\uff0c\u8fde\u63a5\u7740\u706b\u67f4\u7684\u6240\u6709\u706b\u7bad\u90fd\u5c06\u88ab\u53d1\u5c04\u3002<\/p>\n<table width=\"100%\">\n<tbody>\n<tr align=\"center\">\n<td><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/acm.bnu.edu.cn\/images\/zju\/0000\/2125\/2125-2.jpg\" width=\"180\" height=\"227\"><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/acm.bnu.edu.cn\/images\/zju\/0000\/2125\/2125-3.jpg\" width=\"180\" height=\"227\"><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/acm.bnu.edu.cn\/images\/zju\/0000\/2125\/2125-4.gif\" width=\"168\" height=\"125\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f60\u7684\u4efb\u52a1\u662f\uff0c\u7ed9\u51fa\u521d\u59cb\u60c5\u51b5\uff0c\u65cb\u8f6c\u4e00\u4e9b\u5bfc\u706b\u7d22\uff0c\u4f7f\u70b9\u71c3\u67d0\u4e00\u6839\u706b\u67f4\u540e\uff0c\u53d1\u5c04\u7684\u706b\u7bad\u6570\u91cf\u5c3d\u91cf\u591a\u3002<\/p>\n<p><!--more--><\/p>\n<h3>Analysis: <\/h3>\n<blockquote><p>\n\u7b97\u6cd5\u5206\u6790<br \/>\n\u786e\u7acb\u72b6\u6001\uff1a\u6309\u7167\u4ece\u5de6\u5230\u53f3\uff0c\u4ece\u4e0a\u5230\u4e0b\u7684\u987a\u5e8f\u4f9d\u6b21\u8003\u8651\u6bcf\u4e00\u4e2a\u683c\u5b50\uff0c\u6211\u4eec\u9700\u8981\u8bb0\u5f55\u6bcf\u4e2a\u63d2\u5934\u662f\u5426\u5df2\u7ecf\u70b9\u71c3\u4ee5\u53ca\u5b83\u4eec\u4e4b\u95f4\u7684\u8fde\u901a\u60c5\u51b5\uff0e\u56e0\u6b64\u72b6\u6001\u4e3a f(i, j, S, fired) \u8868\u793a\u8f6c\u79fb\u5b8c(i, j)\uff0c\u8f6e\u5ed3\u7ebf\u4e0a10\u4e2a\u63d2\u5934\u7684\u8fde\u901a\u6027\u4e3aS(\u628a\u6bcf\u4e2a\u63d2\u5934\u662f\u5426\u5b58\u5728\u8bb0\u5f55\u5728S\u4e2d), 10\u4e2a\u63d2\u5934\u662f\u5426\u88ab\u70b9\u71c3\u76842\u8fdb\u5236\u6570fired\u7684\u72b6\u6001\u80fd\u5426\u8fbe\u5230\uff0e<br \/>\n\u90a3\u4e48\u6700\u540e\u7684\u7b54\u6848\u4e3a\u6240\u6709\u53ef\u4ee5\u8fbe\u5230\u7684\u72b6\u6001 f(i, j, S, fired) \u4e2d Ones[fired]\u7684\u6700\u5927\u503c\uff0c\u5176\u4e2d Ones[x]\u8868\u793a\u4e8c\u8fdb\u5236\u6570 x \u7684 1 \u7684\u4e2a\u6570\u3002<br \/>\n\u72b6\u6001\u8f6c\u79fb\uff1a\u4f9d\u6b21\u679a\u4e3e\u6bcf\u4e00\u4e2a\u683c\u5b50\u7684\u65cb\u8f6c\u65b9\u5f0f (\u6700\u591a4\u79cd)\uff0c\u6839\u636e\u5f53\u524d\u683c\u5b50\u662f\u5426\u53ef\u4ee5\u4e0e\u4e0a\u9762\u7684\u683c\u5b50\u548c\u5de6\u8fb9\u7684\u683c\u5b50\u901a\u8fc7\u63d2\u5934\u8fde\u63a5\u8d77\u6765\u5206\u60c5\u51b5\u8ba8\u8bba\uff0cO(m) \u626b\u63cf\u8ba1\u7b97\u51fa\u65b0\u7684\u72b6\u6001\uff0e\u524d\u9762\u7684\u9898\u76ee\u6211\u4eec\u5df2\u7ecf\u5f88\u8be6\u7ec6\u5730\u4ecb\u7ecd\u8fc7\u68cb\u76d8\u6a21\u578b\u7684\u95ee\u9898\u7684\u8f6c\u79fb\u65b9\u6cd5\uff0c\u8fd9\u91cc\u4e0d\u518d\u8d58\u8ff0\uff0e\n<\/p><\/blockquote>\n<p>\u72ec\u7acb\u63d2\u5934\uff0c\u63d2\u5934\u7684\u8f6c\u79fb\u5341\u5206\u7075\u6d3b\uff0c\u4e14\u81f3\u591a\u4f1a\u51fa\u73b0 <code>m<\/code> \u4e2a\u4e0d\u540c\u7684\u72ec\u7acb\u63d2\u5934\uff0c\u56e0\u800c\u4f18\u5148\u8003\u8651\u6700\u5c0f\u8868\u793a\u6cd5\u63cf\u8ff0\u4e0a\u9762\u7684\u72b6\u6001 S\u3002<br \/>\n\u7136\u540e\u8fd8\u9700\u8981\u8bb0\u5f55\uff0c\u6bcf\u4e2a\u4f4d\u7f6e\u7684\u63d2\u5934\u662f\u5426\u5904\u4e8e\u5f15\u71c3\u7684\u72b6\u6001\uff08\u4e5f\u53ef\u4ee5\u8bb0\u5f55\u6bcf\u4e2a\u79cd\u7c7b\u7684\u63d2\u5934\u662f\u5426\u5904\u4e8e\u5f15\u71c3\u72b6\u6001\uff0c\u867d\u7136\u8f6c\u79fb\u4e0a\u5e38\u6570\u53ef\u80fd\u4f1a\u5c0f\u3001\u4f46\u662f\u7edf\u8ba1\u7b54\u6848\u4ee5\u53ca\u526a\u679d\u65f6\u4f1a\u6bd4\u8f83\u9ebb\u70e6\u3002\uff09<\/p>\n<p>\u7528\u7c7b\u4f3c <a href=\"https:\/\/www.shuizilong.com\/house\/archives\/2015-multi-university-training-contest-7-%EF%BC%8D-host-by-uestc\/\">HDU 5374. Tetris<\/a> \u7684\u65b9\u6cd5\uff0c\u7528\u56db\u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u9884\u5904\u7406\u51fa\u6bcf\u79cd\u63d2\u5934\u7684\u65cb\u8f6c\u3002<\/p>\n<pre class=\"brush: cpp; light: false; title: ; toolbar: true; notranslate\" title=\"\">\r\nvoid Init(){\r\n    \r\n    \/\/ 1 Left\r\n    \/\/ 2 Up\r\n    \/\/ 4 Down\r\n    \/\/ 8 Right\r\n    \r\n    \/\/ '.'\r\n    Pattern&#x5B;0].PB(0);\r\n    \/\/ '-'\r\n    Pattern&#x5B;1].PB(1|8); Pattern&#x5B;1].PB(2|4);\r\n    \/\/ 'L'\r\n    Pattern&#x5B;2].PB(2|8); Pattern&#x5B;2].PB(8|4); Pattern&#x5B;2].PB(4|1); Pattern&#x5B;2].PB(1|2);\r\n    \/\/ 'T'\r\n    int U = 15;\r\n    Pattern&#x5B;3].PB(U^1); Pattern&#x5B;3].PB(U^2); Pattern&#x5B;3].PB(U^4); Pattern&#x5B;3].PB(U^8);\r\n    \/\/ '+';\r\n    Pattern&#x5B;4].PB(U);\r\n}\r\n<\/pre>\n<p>\u8f6c\u79fb\u65f6\u5404\u79cd\u8ba8\u8bba\u3001\u770b\u4e0a\u63d2\u5934\u548c\u5de6\u63d2\u5934\u7684\u72b6\u6001\u5f97\u5230\u4e0b\u63d2\u5934\u548c\u53f3\u63d2\u5934\u7684\u72b6\u6001\u3002<\/p>\n<pre class=\"brush: cpp; light: false; title: ; toolbar: true; notranslate\" title=\"\">\r\n\r\n                ECH(it, Pattern&#x5B;A&#x5B;i]&#x5B;j]]){\r\n                \r\n                    decode(H&#x5B;src].state&#x5B;ii]);\r\n                    \r\n                    int p = *it;\r\n                    \r\n                    int lt = b&#x5B;j], up = b&#x5B;j+1];\r\n                    bool lt2 = _1(p,0) &amp;&amp; lt, up2 = _1(p,1) &amp;&amp; up; \r\n\/\/\u9700\u8981\u540c\u65f6\u5224\u65ad\u683c\u5b50\u6240\u5728\u7684\u63d2\u5934\u548c\u72b6\u6001\u6240\u5728\u7684\u63d2\u5934\u540c\u65f6\u4e3a\u771f\u3002\r\n                    bool BurN = ((lt2 &amp;&amp; _1(BurNing, j)) || (up2 &amp;&amp; _1(BurNing, j+1)));\r\n\/\/\u5e76\u4e14\u5982\u679c\u6709\u4e00\u5904\u5f15\u71c3\uff0c\u5219\u751f\u6210\u7684\u65b0\u63d2\u5934\u4e5f\u5f15\u71c3\u5e76\u4e14\u5982\u679c\u53d1\u751f\u5408\u5e76\u5219\u5408\u5e76\u8fc7\u540e\u7684\u63d2\u5934\u4e5f\u3002\r\n                    \r\n                    b&#x5B;j] = b&#x5B;j+1] = 0;\r\n                    BurNing &amp;= ~_1(j);\r\n                    BurNing &amp;= ~_1(j+1);\r\n                    \r\n                    int t;\r\n\r\n                    if (lt2 &amp;&amp; up2){ \/\/ \u5408\u5e76\u63d2\u5934\uff0c\u5982\u679c\u6709\u4e00\u4e2a\u5f15\u71c3\u5219\u5c06\u6240\u6709\u4f4d\u7f6e\u7b49\u4e8e\u8fd9\u4e24\u4e2a\u63d2\u5934\u7684\u72b6\u6001\u5168\u90e8\u7f6e\u4e8e\u5f15\u71c3\u3002\r\n                        t = up;\r\n                        REP(k, m+1) if (b&#x5B;k] == lt || b&#x5B;k] == up){\r\n                            if (BurN) BurNing |= _1(k);\r\n                            b&#x5B;k] = t;\r\n                        }\r\n                    }\r\n                    else if (lt2 | up2){ \r\n                        if (lt2) t = lt; else t = up;\r\n                    }\r\n                    else{ \/\/ \u6ce8\u610f\u6700\u591a\u4f1a\u4ea7\u751f m \u4e2a\u63d2\u5934\uff0c\u56e0\u800c\u65b0\u4ea7\u751f\u7684\u63d2\u5934\u8981\u586b m+1\u3002\r\n                        t = m+1;\r\n                    }\r\n                    \r\n                    if (_1(p,2)){ \/\/ \u662f\u5426\u4ea7\u751f\u4e0b\u63d2\u5934\r\n                        b&#x5B;j] = t;\r\n                        if (BurN) BurNing |= _1(j);\r\n                    }\r\n                    \r\n                    if (_1(p,3) &amp;&amp; j != m-1){ \/\/ \u662f\u5426\u4ea7\u751f\u53f3\u63d2\u5934\r\n                        b&#x5B;j+1] = t;\r\n                        if (BurN) BurNing |= _1(j+1);\r\n                    }\r\n                    \r\n                    if (!BurNing) continue; \/\/ Cut-1\r\n                \r\n                    RST(bb); REP(k, m+1) if (b&#x5B;k]) ++bb&#x5B;b&#x5B;k]];\r\n                    REP(k, m+1) if (bb&#x5B;b&#x5B;k]] == 1 &amp;&amp; !_1(BurNing, k)) b&#x5B;k] = 0; \/\/ Cut-2\r\n                    \r\n                    LL s = encode(); _des.push_back(s);\r\n                    if (count_bits(BurNing) &gt; best){\r\n                        best = count_bits(BurNing);\r\n                        critical = s;\r\n                    }\r\n                }\r\n<\/pre>\n<blockquote><p>\n\u5982\u679c\u76f4\u63a5\u6309\u7167\u4e0a\u9762\u7684\u601d\u8def\u4f5c\u52a8\u6001\u89c4\u5212\uff0cSample\u4e5f\u9700\u8981\u8fd0\u884c> 60s\uff0c\u5b9e\u5728\u4ee4\u4eba\u65e0\u6cd5\u6ee1\u610f\uff0e\u4f18\u5316\uff0c\u52bf\u5728\u5fc5\u884c\uff0e\u5982\u4f55\u901a\u8fc7\u526a\u679d\u4f18\u5316\u6765\u51cf\u5c11\u6269\u5c55\u7684\u72b6\u6001\u603b\u6570\uff0c\u5c3d\u53ef\u80fd\u820d\u53bb\u65e0\u6548\u72b6\u6001\u6210\u4e3a\u4e86\u73b0\u5728\u6240\u9762\u4e34\u7684\u95ee\u9898\uff1a<br \/>\n\u526a\u679d\u901a\u5e38\u53ef\u4ee5\u5206\u4e3a\u4e24\u7c7b\uff1a\u4e00\uff0e\u53ef\u884c\u6027\u526a\u679d\uff0c\u5373\u5c06\u65e0\u8bba\u4e4b\u540e\u5982\u4f55\u51b3\u7b56\uff0c\u90fd\u4e0d\u53ef\u80fd\u6ee1\u8db3\u9898\u76ee\u8981\u6c42\u7684\u72b6\u6001\u526a\u6389\uff1b\u4e8c\uff0e\u6700\u4f18\u6027\u526a\u679d\uff0c\u5373\u5bf9\u4e8e\u6700\u4f18\u6027\u95ee\u9898\uff0c\u5c06\u4e0d\u53ef\u80fd\u6210\u4e3a\u6700\u4f18\u89e3\u7684\u72b6\u6001\u7ed9\u526a\u6389\uff0e\u6211\u4eec\u4ece\u8fd9\u4e24\u4e2a\u89d2\u5ea6\u5165\u624b\u6765\u8003\u8651\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\n\u526a\u679d\u4e00\uff1a\u5982\u679c\u8f6e\u5ed3\u7ebf\u4e0a\u6240\u6709\u7684\u63d2\u5934\u5168\u90e8\u90fd\u672a\u88ab\u70b9\u71c3\uff0c\u90a3\u4e48\u6700\u540e\u6240\u6709\u7684\u706b\u7bad\u90fd\u4e0d\u53ef\u80fd\u53d1\u5c04\uff0c\u6240\u4ee5\u8fd9\u4e2a\u72b6\u6001\u53ef\u4ee5\u820d\u53bb\uff0e\u8fd9\u4e2a\u526a\u679d\u770b\u4e0a\u53bb\u975e\u5e38\u663e\u7136\uff0c\u5bf9\u4e8e\u5927\u90e8\u5206\u6570\u636e\u5374\u53ef\u4ee5\u526a\u6389\u8fd1\u4e4e\u4e00\u534a\u7684\u72b6\u6001\uff0e<\/li>\n<li>\n\u526a\u679d\u4e8c\uff1a\u5982\u679c\u8f6e\u5ed3\u7ebf\u4e0a\u6709\u4e00\u4e2a\u63d2\u5934p\uff0c\u5b83\u6ca1\u6709\u88ab\u706b\u67f4\u70b9\u71c3\u4e14\u6ca1\u6709\u5176\u5b83\u7684\u63d2\u5934\u4e0e\u5b83\u8fde\u901a\uff0c\u90a3\u4e48\u8fd9\u4e2a\u63d2\u5934\u53ef\u4ee5\u8ba4\u4e3a\u662f\u201c\u65e0\u6548\u201d\u63d2\u5934\uff0e\u56e0\u4e3a\u5373\u4f7f\u8fd9\u4e2a\u63d2\u5934\u6240\u5728\u7684\u8def\u5f84\u4ee5\u540e\u4f1a\u88ab\u70b9\u71c3\u800c\u53ef\u4ee5\u53d1\u5c04\u67d0\u4e2a\u706b\u7bad\uff0c\u90a3\u4e48\u4e00\u5b9a\u5b58\u5728\u53e6\u4e00\u6761\u8def\u5f84\u53ef\u4ee5\u4e0d\u7ecf\u8fc7\u8fd9\u4e2a\u63d2\u5934\u800c\u53d1\u5c04\u706b\u7bad\uff0c\u5982\u56fe\uff0e\u8fd9\u79cd\u60c5\u51b5\u4e0b\u5c06\u63d2\u5934\u8bbe\u7f6e\u4e3a\u4e0d\u5b58\u5728\uff0e\u8fd9\u662f\u6700\u91cd\u8981\u7684\u4e00\u4e2a\u526a\u679d\uff0c\u5927\u90e8\u5206\u6570\u636e\u7684\u72b6\u6001\u603b\u6570\u53ef\u4ee5\u7f29\u5c0f\u4e03\u516b\u500d\uff0c\u751a\u81f3\u5341\u51e0\u500d\uff0e<\/li>\n<p>\u526a\u679d\u4e09\uff1a\u8fd9\u662f\u4e00\u4e2a\u6700\u4f18\u6027\u95ee\u9898\uff0c\u6211\u4eec\u8003\u8651\u6700\u4f18\u6027\u526a\u679d\uff1a\u5bf9\u4e8e\u4e00\u4e2a\u683c\u5b50(i, j)\u7684\u4e24\u4e2a\u72b6\u6001 (S0, Fired0)\uff0c (S1, Fired1)\uff0c\u5982\u679c\u7b2c\u4e00\u4e2a\u72b6\u6001\u7684\u6bcf\u4e00\u4e2a\u5b58\u5728\u7684\u63d2\u5934\u5728\u7b2c\u4e8c\u4e2a\u72b6\u6001\u4e2d\u4e0d\u4ec5\u5b58\u5728\u800c\u4e14\u90fd\u88ab\u70b9\u71c3\uff0c\u90a3\u4e48\u65e0\u8bba\u4ee5\u540e\u5982\u4f55\u51b3\u7b56\uff0c\u7b2c\u4e8c\u4e2a\u72b6\u6001\u70b9\u71c3\u7684\u706b\u7bad\u4e2a\u6570\u4e0d\u4f1a\u5c11\u4e8e\u7b2c\u4e00\u4e2a\u72b6\u6001\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u679c\u65ad\u5730\u820d\u53bb\u7b2c\u4e00\u4e2a\u72b6\u6001\uff0e\u5bf9\u4e8e\u6bcf\u4e00\u4e2a(i, j)\uff0c\u9009\u62e9Ones[Fired]\u6700\u591a\u7684\u4e00\u4e2a\u72b6\u6001Best\uff0c\u5982\u679c\u4e00\u4e2a\u72b6\u6001\u4e00\u5b9a\u4e0d\u6bd4Best\u597d\uff0c\u5c31\u53ef\u4ee5\u820d\u53bb\uff0e <\/li>\n<li>\u526a\u679d\u56db\uff1a\u4ece\u8fb9\u754c\u60c5\u51b5\u5165\u624b\uff0c\u8fb9\u754c\u72b6\u6001\u975e\u5e38\u7279\u6b8a\uff0c\u4e5f\u975e\u5e38\u5bb9\u6613\u5bfc\u81f4\u4ea7\u751f\u65e0\u6548\u72b6\u6001\uff0e\u5206\u6790\u4e00\u4e0b\uff0c\u8f6c\u79fb\u5b8c\u6700\u540e\u4e00\u5217\u7684\u67d0\u4e2a\u683c\u5b50(i, 6)\u540e\uff0c\u5982\u679cI\u7c7b\u63d2\u5934\u4e2d\u67d0\u4e2a\u63d2\u5934p\u6ca1\u6709\u88ab\u70b9\u71c3\uff0c\u5e76\u4e14II\u7c7b\u63d2\u5934\u4e2d\u6ca1\u6709\u63d2\u5934\u4e0e\u5b83\u8fde\u901a\uff0c\u90a3\u4e48\u8fd9\u4e2a\u63d2\u5934\u5c31\u6210\u4e86\u201c\u65e0\u6548\u201d\u63d2\u5934\uff0e\n<\/li>\n<\/ul>\n<p>\u6bd4\u8f83\u4ee5\u4e0a\u56db\u79cd\u526a\u679d\u7684\u6548\u679c\uff0c\u7531\u4e8e\u4e0d\u540c\u7684\u68cb\u76d8\u521d\u59cb\u72b6\u6001\u6269\u5c55\u7684\u72b6\u6001\u603b\u6570\u5dee\u5f02\u8f83\u5927\uff0c\u56e0\u6b64\u9009\u53d610\u7ec4\u4e0d\u540c\u7684\u68cb\u76d8\u521d\u59cb\u72b6\u6001\u6765\u6d4b\u8bd5\u6269\u5c55\u72b6\u6001\u7684\u603b\u6570\uff0e10\u7ec4\u6570\u636e\u5927\u81f4\u5206\u5e03\u5982\u4e0b\uff1aTest 1~4\u4f9d\u6b21\u4e3a\u5168\u90e8\u201c\u2014\u201d\uff0c\u201cL\u201d,\u201cT\u201d\uff0c\u201c+\u201d\uff0cTest 5\u4e3a\u5947\u6570\u884c\u201cL\u201d\uff0c\u5076\u6570\u884c\u4e3a\u7a7a\uff0cTest 6\u4e3a\u201cL\u201d\uff0c\u201cT\u201d\u4ea4\u66ff\uff0eTest 7~10\u4e3a\u968f\u673a\u6570\u636e\uff0c\u201cL\u201d\uff0c\u201cT\u201d\u5206\u5e03\u8f83\u591a\uff0cTest 10\u7684\u201c\u2014\u201d\u8f83\u591a\uff0e\n<\/p><\/blockquote>\n<p>\u6ce8\u610f\uff0c\u4e0a\u9762\u7684\u526a\u679d\u4e09\uff0c\u5982\u679c\u5bf9\u6bcf\u4e2a\u72b6\u6001\u90fd\u627e\u662f\u5426\u6709\u4e00\u4e2a\u72b6\u6001\u53ef\u4ee5\u5b8c\u6574\u8986\u76d6\u7684\u8bdd\uff0c\u4ee3\u4ef7\u592a\u5927\u3002<br \/>\n\u56e0\u6b64\u91c7\u7528\u7684\u662f\u4e00\u79cd\u6298\u8877\u7684\u7b56\u7565\uff0c\u53ea\u8bb0\u5f55 Fired \u6700\u591a\u7684\u72b6\u6001\uff0c\u8fdb\u884c\u526a\u679d\u3002<\/p>\n<p><a href=\"https:\/\/gist.github.com\/lychees\/085c994a7bedb29154bd\">https:\/\/gist.github.com\/lychees\/085c994a7bedb29154bd<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>http:\/\/acm.bnu.edu.cn\/v3\/problem_show.php?pid=15645 http:\/\/cojs.tk\/cogs\/problem\/problem.php?pid=1514 Brief description: 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