{"id":2833,"date":"2023-05-12T22:54:21","date_gmt":"2023-05-12T14:54:21","guid":{"rendered":"https:\/\/www.shuizilong.com\/house\/?p=2833"},"modified":"2023-05-12T23:09:54","modified_gmt":"2023-05-12T15:09:54","slug":"hdu-3303-harmony-forever","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/hdu-3303-harmony-forever\/","title":{"rendered":"HDU 3303. Harmony Forever"},"content":{"rendered":"

\u9898\u610f<\/h2>\n

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\n\uff08\u8fd9\u4e2a\u6211\u89c9\u5f97\u662f\u8fd9\u9898\u7684\u96be\u70b9\uff0c\u5bf9\u4e8e\u53d6\u6a21\u64cd\u4f5c\u6211\u5f88\u96be\u53bb\u5f80\u770b\u8d77\u6765\u590d\u6742\u5ea6\u66f4\u9ad8\u7684 rmq \u4e0a\u9762\u60f3\u3002\uff09<\/p>\n

\u6ce8\u610f\u5230\u8fd9\u4e2a rmq \u6211\u4eec\u662f\u53ef\u4ee5\u79bb\u7ebf\u7684\uff0c\u800c\u5bf9\u4e8e\u9759\u6001\u7684\u95ee\u9898\u662f\u53ef\u4ee5\u5355\u8c03\u6808\u7684\uff08\u53c2\u8003\u4e4b\u524d\u7684 O(n)-O(1) RMQ\uff09\uff0c\u800c\u53ea\u6709\u52a0\u6570\u64cd\u4f5c\uff0c\u53ef\u4ee5\u53d8\u6210\u96c6\u5408\u5206\u88c2\uff0c\u53cd\u8fc7\u6765\u5c31\u53d8\u6210\u5e76\u67e5\u96c6\u3002<\/p>\n

\r\nconst int N = int(4e4) + 9, M = int(5e5) + 9, SM = 1009;\r\nchar T[N]; int n, A[N], AA[N], P[M+1], id[M], nn;\r\nVI res;\r\n\r\nint Find(int x){\r\n    return P[x] == x ? x : P[x] = Find(P[x]);\r\n}\r\n\r\nvoid Union(int x, int y){\r\n    x = Find(x), y = Find(y);\r\n    assert(x != y);\r\n    P[x] = y;\r\n}\r\n\r\n\r\nint main(){\r\n\r\n#ifndef ONLINE_JUDGE\r\n    freopen("in.txt", "r", stdin);\r\n    freopen("out.txt", "w", stdout);\r\n#endif\r\n\r\n    \/\/cout << sqrt(M) << endl;\r\n\r\nint __size__ = 256 << 20; \/\/ 256MB\r\nchar *__p__ = (char*)malloc(__size__) + __size__;\r\n__asm__("movl %0, %%esp\\n" :: "r"(__p__));\r\n\r\n    while(RD(n)){\r\n\r\n        printf("Case %d:\\n", ++Case);\r\n\r\n        nn = 0; REP_1(i, M) P[i] = i;\r\n\r\n        RST(id); REP_1(i, n){\r\n            RC(T[i]); RD(A[i]);\r\n            if (T[i] == 'B') AA[++nn] = A[i], id[A[i]] = -nn;\r\n        }\r\n\r\n        FOR(i, 1, M){\r\n            if (!id[i]) Union(i, i+1);\r\n        }\r\n\r\n        CLR(res); DWN_1(i, n, 1) if (T[i] == 'B'){\r\n            Union(A[i], A[i]+1);\r\n            --nn;\r\n        }\r\n        else{\r\n\r\n            int r = A[i]; if (Find(1) == M){\r\n                res.PB(-1);\r\n                continue;\r\n            }\r\n\r\n            if (r < SM){\r\n                PII ar = MP(INF, 0);\r\n                DWN_1(t, nn, 1){\r\n                    checkMin(ar, MP(AA[t]%r, -t));\r\n                    if (!ar.fi) break;\r\n                }\r\n                res.PB(-ar.se);\r\n                continue;\r\n            }\r\n\r\n            PII a=MP(INF,0); int tt;\r\n\r\n            for(int it=Find(1);it!=M;it=Find(min(M, it+(r-tt)))){\r\n                checkMin(a, MP(tt=it%r, id[it]));\r\n            }\r\n            res.PB(-a.se);\r\n        }\r\n\r\n        RVS(res); ECH(it, res) OT(*it);\r\n        puts("");\r\n    }\r\n\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u9898\u610f \u5bf9\u4e8e\u96c6\u5408S\uff0c\u6709\u4e24\u79cd\u64cd\u4f5c\uff1a1\u3001B X\uff1b2\u3001A Y\u3002B X\u4ee3\u8868\u5c06X\u52a0\u5165\u96c6\u5408S\uff0c\u5e76\u8d4b\u4e88X\u4e00\u4e2a\u5e8f\u53f7\uff0c\u4ee3\u8868\u5b83\u662f\u7b2c\u51e0\u4e2a\u6570\uff1bA Y\u4ee3\u8868\u4ece\u96c6\u5408S\u4e2d\u627e\u51famod Y\u6700\u5c0f\u7684\u6570\uff0c\u8f93\u51fa\u7684\u662f\u8be5\u6570\u7684\u5e8f\u53f7\u3002 \u505a\u6cd5 \u975e\u5e38\u5389\u5bb3\u7684\u4e00\u4e2a\u9898\u3002 \u5bf9 y \u8fdb\u884c\u8ba8\u8bba\uff0c\u5c0f\u7684 y \u6bcf\u6b21\u52a0\u6570\u7684\u65f6\u5019\u66b4\u529b\u66f4\u65b0\uff0c\u800c\u5927\u7684 y \u8f6c\u6362\u6210 rmq \u95ee\u9898\u3002 \uff08\u8fd9\u4e2a\u6211\u89c9\u5f97\u662f\u8fd9\u9898\u7684\u96be\u70b9\uff0c\u5bf9\u4e8e\u53d6\u6a21\u64cd\u4f5c\u6211\u5f88\u96be\u53bb\u5f80\u770b\u8d77\u6765\u590d\u6742\u5ea6\u66f4\u9ad8\u7684 rmq \u4e0a\u9762\u60f3\u3002\uff09 \u6ce8\u610f\u5230\u8fd9\u4e2a rmq \u6211\u4eec\u662f\u53ef\u4ee5\u79bb\u7ebf\u7684\uff0c\u800c\u5bf9\u4e8e\u9759\u6001\u7684\u95ee\u9898\u662f\u53ef\u4ee5\u5355\u8c03\u6808\u7684\uff08\u53c2\u8003\u4e4b\u524d\u7684 O(n)-O(1) RMQ\uff09\uff0c\u800c\u53ea\u6709\u52a0\u6570\u64cd\u4f5c\uff0c\u53ef\u4ee5\u53d8\u6210\u96c6\u5408\u5206\u88c2\uff0c\u53cd\u8fc7\u6765\u5c31\u53d8\u6210\u5e76\u67e5\u96c6\u3002 const int N = int(4e4) + 9, M = int(5e5) + 9, SM = 1009; char T[N]; int n, A[N], AA[N], P[M+1], id[M], nn; VI res; int Find(int x){ […]<\/p>\n","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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[1],"tags":[],"class_list":["post-2833","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-JH","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/2833","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=2833"}],"version-history":[{"count":5,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/2833\/revisions"}],"predecessor-version":[{"id":2838,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/2833\/revisions\/2838"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=2833"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=2833"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=2833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}