设二分的答案为x,该候选人原来的得票为v,想要超过他至少要x+v+1。 同时用前缀和维护区间和。 第一种情况为该候选人在前m个人中,如下图所示。 绿色箭头为被讨论的人,蓝色箭头表示x+v+1在原数组中的位置,蓝勾的则是最劣情况下超过当前候选人的人。
AtCoder (ABC 374)比赛将于本周六(10月5日)晚20:00进行,同学们参与比赛后可在本周日晚进入继续到直播间观看题目解析。 本周日比赛讲解老师:清华大学 殷老师(NOI2019银牌) 欢迎加入ABC交流QQ群咨询、沟通、交流(群密码:AtCoder) ABC373 比赛真题讲解 题目列表: 题目地址:https://atcoder.jp/contests/abc370/...
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HFJ11-1041E-L21RL、XC3S1600E-5FGG320I、C0805C474K4RAC7800、MMA02040C7509FB300、CY27C010-120WC、EMK063B7103KP-F、KLMAG4FE4B-B002、DRA746APGABCRQ1、RCH114NP-391KB、MC68HC908JB12DW、ISA1235AC1-T112-1F、OPA373AIDBVTG4、M66005-0001AFP、EP2AGX125EF29C4、MC74VHC1G125DFT2、K6X8016T3...
CrashReporter Key:1f7448b682620a373ff01cf8ae95a9238488a987 Hardware Model:iPad11,3 Process:QueensDB[90772] Path:/private/var/containers/Bundle/Application/F72C50C8-86EB-4404-A689-C5F9CB2651DF/QueensDB.app/QueensDB Identifier:com.Aviametrix.QueensEgypt ...
abc293 d,并查集,不在同一集合里ans2 --, 在同一集合里ans1 ++ e,分治/矩阵快速幂。分治:类似于(1+a^n/2)(1+a+...+a^n/2)的形式。 用公式法的话因为不一定有逆元,会错。 f,有两种思考方式: 枚举base,check01 枚举01,check 枚举base大小前一种是O(n)的,后一种如果位数少,配合二分,复杂...
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