{"id":1191,"date":"2024-09-22T09:00:00","date_gmt":"2024-09-22T01:00:00","guid":{"rendered":"https:\/\/seanxd.com\/?p=1191"},"modified":"2024-08-31T02:01:19","modified_gmt":"2024-08-30T18:01:19","slug":"zerojudge-c421","status":"publish","type":"post","link":"https:\/\/seanxd.com\/en\/zerojudge-c421\/","title":{"rendered":"ZeroJudge C421: Cloud Printing"},"content":{"rendered":"\n\n\n<p>\u96f2\u7aef\u5217\u5370\u670d\u52d9\u516c\u53f8\u63d0\u51fa\u4e00\u500b\u65b0\u578b\u670d\u52d9\u3002\u8a72\u516c\u53f8\u6709 N \u53f0 3D \u5370\u8868\u6a5f\uff0c\u5176\u4e2d\u5370\u8868\u6a5f P<sub>1<\/sub>\u3001P<sub>2<\/sub>\u3001\u2026\u3001P<sub>k<\/sub> \u7528\u4ee5\u512a\u5148\u670d\u52d9\u6700\u70ba\u91cd\u8981\u5ba2\u6236\uff0c\u5370\u8868\u6a5f P<sub>k+1<\/sub>\u3001P<sub>k+2<\/sub>\u3001\u2026\u3001P<sub>N<\/sub> \u5217\u5370\u901f\u5ea6\u8f03\uff0c\u7528\u4ee5\u512a\u5148\u670d\u52d9\u4e00\u822c\u5ba2\u6236\u3002<\/p>\n\n\n\n<p>\u6bcf\u500b\u5ba2\u6236\u4f9d\u8a72\u5e74\u5ea6\u6240\u9078\u64c7\u670d\u52d9\u7b49\u7d1a\u53ca\u6240\u7e73\u4ea4\u8cbb\u7528\u53ef\u6709\u4e0d\u540c\u7684\u5217\u5370\u512a\u5148\u6b0a\uff0c\u4ee5 1\uff5e10000 \u8868\u793a\u4e4b\uff1b10000 \u4ee3\u8868\u6700\u9ad8\u5217\u5370\u512a\u5148\u6b0a\uff0c1 \u4ee3\u8868\u6700\u4f4e\u5217\u5370\u512a\u5148\u6b0a\u3002<\/p>\n\n\n\n<p>\u70ba\u4e86\u4e0d\u8b93\u4f4e\u5217\u5370\u512a\u5148\u6b0a\u7684\u5ba2\u6236\u6c38\u7121\u6b62\u76e1\u7684\u7b49\u5f85\uff0c\u5370\u8868\u6a5f P<sub>1<\/sub>\uff5eP<sub>k<\/sub> \u4e00\u65e6\u6709\u7a7a\uff0c\u7b49\u5f85\u7684\u5de5\u4f5c\u4e2d\u512a\u5148\u6b0a\u6700\u9ad8\u7684\u5de5\u4f5c\u5c31\u6703\u88ab\u4ea4\u4ed8\u5217\u5370\uff1b\u800c\u5370\u8868\u6a5f P<sub>k+1<\/sub>\uff5eP<sub>N<\/sub> \u4e00\u65e6\u6709\u7a7a\uff0c\u7b49\u5f85\u7684\u5de5\u4f5c\u4e2d\u512a\u5148\u6b0a\u6700\u4f4e\u7684\u5de5\u4f5c\u5c31\u6703\u88ab\u4ea4\u4ed8\u5217\u5370\u3002<\/p>\n\n\n\n<p>\u8acb\u5beb\u4e00\u500b\u7a0b\u5f0f\u5217\u8209\u4ea4\u4ed8\u5217\u5370\u5de5\u4f5c\u7684\u9806\u5e8f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7bc4\u4f8b\u6e2c\u8cc7<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7bc4\u4f8b\u8f38\u5165<\/th><th>\u7bc4\u4f8b\u8f38\u51fa<\/th><\/tr><\/thead><tbody><tr><td>\u8f38\u5165\u53ea\u6709\u4e00\u884c\uff0c\u5171\u6709\u4e0d\u5b9a\u6578\u91cf\u7684\u6574\u6578\uff0c\u6574\u6578\u53ef\u70ba\u300c-2, -1, 0, 1, 2, \u2026, 10000\u300d\uff0c\u5169\u6574\u6578\u4e4b\u9593\u4ee5\u4e00\u500b\u7a7a\u767d\u9694\u958b\u3002<br>-2 \u8868\u793a\u5370\u8868\u6a5f P<sub>1<\/sub>\uff5eP<sub>k<\/sub> \u5176\u4e2d\u4e00\u53f0\u6709\u7a7a\uff0c\u53ef\u4ee5\u5217\u5370\u6700\u9ad8\u512a\u5148\u6b0a\u7684\u5de5\u4f5c\u3002<br>-1 \u8868\u793a\u5370\u8868\u6a5f P<sub>k+1<\/sub>\uff5eP<sub>N<\/sub> \u5176\u4e2d\u4e00\u53f0\u6709\u7a7a\uff0c\u53ef\u4ee5\u5217\u5370\u6700\u4f4e\u512a\u5148\u6b0a\u7684\u5de5\u4f5c\u3002<br>1\uff5e10000 \u4ee3\u8868\u65b0\u589e\u4e00\u500b\u512a\u5148\u6b0a\u70ba\u8a72\u6578\u5b57\u4e4b\u5de5\u4f5c\u3002<br>0 \u5247\u4ee3\u8868\u8f38\u5165\u7d50\u675f\u3002<br>\u82e5\u8f38\u5165\u70ba -1 \u6216 -2 \u4f46\u7121\u7b49\u5f85\u5217\u5370\u7684\u5de5\u4f5c\uff0c\u5247\u4e0d\u5217\u5370\uff0c\u9700\u7b49\u5f85\u4e0b\u4e00\u500b -1 \u6216 -2 \u624d\u518d\u5217\u5370\u65b0\u7684\u5de5\u4f5c\u3002<\/td><td>\u8acb\u4f9d\u88ab\u5217\u5370\u5de5\u4f5c\u7684\u9806\u5e8f\uff0c\u8f38\u51fa\u8a72\u5de5\u4f5c\u7684\u512a\u5148\u6b0a\u4ee3\u865f\uff0c\u4e4b\u5f8c\u7dca\u63a5\u8457\u4e00\u500b\u7a7a\u767d\u3002<br>\u5c1a\u672a\u4ea4\u4ed8\u5217\u5370\u7684\u5de5\u4f5c\u4e0d\u9700\u8f38\u51fa\u3002<\/td><\/tr><tr><td>20 15 10 -2 -1 -1 0<\/td><td>20 10 15<\/td><\/tr><tr><td>1 2 3 -2 4 5 6 -1 7 0<\/td><td>3 1<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">ZeroJudge C421 \u7bc4\u4f8b\u6e2c\u8cc7<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u89e3\u984c\u601d\u8def<\/h2>\n\n\n\n<p>\u4f7f\u7528 deque \u4f86\u5b58\u5132\u8cc7\u6599\uff0c\u4f46\u662f\u6703\u5b58\u5230\u540c\u6a23\u7684\u6578\u5b57\uff0c\u6240\u4ee5\u8981\u518d\u958b\u4e00\u500b\u9663\u5217\u4f86\u7d00\u9304\u6bcf\u4e00\u7a2e\u6578\u5b57\u51fa\u73fe\u7684\u6b21\u6578\u3002\u56e0\u70ba\u5728 deque \u4e2d\u522a\u9664\u8cc7\u6599\u4e5f\u6703\u8017\u8cbb\u6642\u9593\uff0c\u6240\u4ee5\u8981\u76e1\u53ef\u80fd\u6e1b\u5c11\u522a\u9664\u8cc7\u6599\u7684\u6b21\u6578\u3002<\/p>\n\n\n\n<p>\u7576\u9663\u5217\u4e2d\u7d00\u9304\u6536\u5230\u7684\u6578\u5b57\u4e26\u6c92\u6709\u5728 deque \u4e2d\uff0c\u5c31\u8981\u5c07\u8a72\u6578\u5b57\u5b58\u5230 deque \u4e2d\uff0c\u9019\u908a\u8981\u4f7f\u7528\u4e8c\u5206\u63d2\u5165\u6cd5\u4f86\u5c0b\u627e\u5408\u9069\u7684\u5730\u65b9\u505a\u63d2\u5165\uff0c\u9019\u6a23\u5c31\u53ef\u4ee5\u7bc0\u7701\u6392\u5e8f\u7684\u6642\u9593\u3002\u5982\u679c\u6536\u5230\u7684\u6578\u5b57\u5df2\u7d93\u5b58\u5728\u65bc deque \u4e2d\uff0c\u5247\u5c07\u9019\u500b\u6578\u5b57\u7684\u9663\u5217\u503c +1\u3002<\/p>\n\n\n\n<p>\u7576\u9700\u8981\u522a\u9664 deque \u4e2d\u7684\u8cc7\u6599\u6642\uff0c\u5148\u78ba\u8a8d\u8981\u522a\u6389\u7684\u6578\u5b57\u5728\u9663\u5217\u4e2d\u7684\u503c\u662f\u5426\u70ba 1\uff0c\u5982\u679c\u662f\u7684\u8a71\u5c31\u4ee3\u8868\u9700\u8981\u5728 deque \u4e2d\u522a\u6389\uff0c\u5982\u679c\u662f\u8981\u522a\u6389\u7b2c\u4e00\u500b\u8cc7\u6599\u5c31\u662f pop_front()\uff0c\u6700\u5f8c\u4e00\u500b\u8cc7\u6599\u5c31\u662f pop_back()\u3002\u5982\u679c\u9663\u5217\u503c\u4e0d\u662f 1 \u5c31\u4ee3\u8868\u4e0d\u9700\u8981\u522a\u8cc7\u6599\uff0c\u53ea\u9700\u8981\u5c07\u9663\u5217\u503c -1 \u5373\u53ef\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7bc4\u4f8b\u7a0b\u5f0f\u78bc\uff0d<a href=\"https:\/\/zerojudge.tw\/ShowProblem?problemid=c421\" target=\"_blank\" rel=\"noreferrer noopener\">ZeroJudge C421: \u96f2\u7aef\u5217\u5370<\/a><\/h3>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-cpp\" data-lang=\"C++\"><code>#include &lt;iostream&gt;\n#include &lt;deque&gt;\nusing namespace std;\n\ndeque&lt;int&gt; vv;\nint priority[50000] = {};\n\nvoid bbinsert(const int target) {\n    int left = 0, right = vv.size();\n    while(left &lt; right) {\n        const int middle = (left + right)\/2;\n        if (vv[middle] &lt; target) {\n            left = middle+1;\n        }\n        else {\n            right = middle;\n        }\n    }\n    vv.emplace(vv.begin()+left, target);\n}\nint main() {\n    cin.sync_with_stdio(0);\n    cin.tie(0);\n    int N, low = 0, high = 0, demand = 0;\n    for (int i = 0; i&lt;=10000; i++) priority[i] = 0;\n    while (cin &gt;&gt; N && N != 0) {\n        if (N == -1) {\n            low++;\n            if (demand &gt; 0) {\n                const int tmp = vv[0];\n                cout &lt;&lt; tmp &lt;&lt; &quot; &quot;;\n                if (priority[tmp] == 1) {\n                    vv.pop_front();\n                }\n                priority[tmp]--;\n                low--;\n                demand--;\n            }\n        }\n        else if (N == -2) {\n            high++;\n            if (demand &gt; 0) {\n                const int tmp = vv[vv.size()-1];\n                cout &lt;&lt; tmp &lt;&lt; &quot; &quot;;\n                if (priority[tmp] == 1) vv.pop_back();\n                priority[tmp]--;\n                high--;\n                demand--;\n            }\n        }\n        else {\n            if (priority[N] == 0) bbinsert(N);\n            priority[N]++;\n            demand++;\n        }\n    }\n    cout &lt;&lt; &quot;\\n&quot;;\n}\n\n\/\/ZeroJudge C421\n\/\/Dr. SeanXD<\/code><\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u96f2\u7aef\u5217\u5370\u670d\u52d9\u516c\u53f8\u63d0\u51fa\u4e00\u500b\u65b0\u578b\u670d\u52d9\u3002\u8a72\u516c\u53f8\u6709 N \u53f0 3D \u5370\u8868\u6a5f\uff0c\u5176\u4e2d\u5370\u8868\u6a5f P1\u3001P2\u3001\u2026\u3001Pk \u7528\u4ee5\u512a\u5148\u670d [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[29],"tags":[42,20,41,8,9],"class_list":["post-1191","post","type-post","status-publish","format-standard","hentry","category-zerojudge-","tag-deque","tag-20","tag-41","tag-8","tag-9"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts\/1191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/comments?post=1191"}],"version-history":[{"count":3,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts\/1191\/revisions"}],"predecessor-version":[{"id":1194,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts\/1191\/revisions\/1194"}],"wp:attachment":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/media?parent=1191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/categories?post=1191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/tags?post=1191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}