
A.CuttingBanner枚举切掉中间部分匹配[crayon-697c51f0f3057213227201/]B.QuasiBinary用最少的只包含01的数凑出n每次贪心在非0位上取1[crayon-697c51f0f3061144559654/]C.Tourist'sNotes根据每俩个的时间及高度差可计算答案[crayon-697c51f0f3066335642759/]D.WeirdChess暴力暴力暴力[crayon-697c51f0f306b102880130/]E.DemiurgesPlayAgain考虑进入某个根,最终会取得子树第几小的叶子[crayon-697c51f0f3072069939...

「cf534A」Examyy个奇怪的构造TT[crayon-697c51f100e05621730237/]「cf534B」CoveredPathd很小,最大速度就很小,dp即可[crayon-697c51f100e0e158533824/]「cf534C」Polycarpus'Dice对于每个骰子,得出其它骰子的和sum则它的最小值为A-sum,最大值为A-n+1[crayon-697c51f100e14272611386/]「cf534D」Handshakes尽量大的能处理则处理[crayon-697c51f100e18033535581/]「cf534E」BerlandLocalPositioningSystem非...

DescriptionThoughZCChasmanyFans,ZCChimselfisacrazyFanofacoder,called"Memset137".ItwasonCodefires(CF),anonlinecompetitiveprogrammingsite,thatZCCknewMemset137,andimmediatelybecamehisfan.Butwhy?BecauseMemset137cansolveallprobleminrounds,withoutunsuccessfulsubmissions;hisestimationoftimetosolvecertainproblemissoaccurate,thathecansurelygetanAcceptedthesecondhehaspredicted.Hesoon...

Manyyearshavepassed,andnfriendsmetatapartyagain.Technologieshaveleapedforwardsincethelastmeeting,cameraswithtimerappearedandnowitisnotobligatoryforoneofthefriendstostandwithacamera,and,thus,beingabsentonthephoto.Simplyspeaking,theprocessofphotographingcanbedescribedasfollows.Eachfriendoccupiesarectangleofpixelsonthephoto:thei-thoftheminastandingstateoccupiesawipixelswideandahipixelshighrectang...
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