「cf534A」Examyy个奇怪的构造TT[crayon-688e36da861af110413542/]「cf534B」CoveredPathd很小,最大速度就很小,dp即可[crayon-688e36da861b8814417219/]「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-688e36da861be451905573/]「cf534D」Handshakes尽量大的能处理则处理[crayon-688e36da861c2877354558/]「cf534E」BerlandLocalPositioningSystem非...
Noticethatthememorylimitisnon-standard.RecentlyArthurandSashahavestudiedcorrectbracketsequences.Arthurunderstoodthistopicperfectlyandbecomesoamazedaboutcorrectbracketsequences,soheevengothimselfafavoritecorrectbracketsequenceoflength2n.UnlikeArthur,Sashaunderstoodthetopicverybadly,andbrokeArthur'sfavoritecorrectbracketsequencejusttospitehim.AllArthurremembersabouthisfavoritesequenceisfo...
Dreamoonlikestoplaywithsets,integersand.isdefinedasthelargestpositiveintegerthatdividesbothaandb.LetSbeasetofexactlyfourdistinctintegersgreaterthan0.DefineStobeofrankkifandonlyifforallpairsofdistinctelementssi,sjfromS,.Givenkandn,Dreamoonwantstomakeupnsetsofrankkusingintegersfrom1tomsuchthatnointegerisusedintwodifferentsets(ofcourseyoucanleavesomeintegerswithoutuse).Calculatetheminimummth...
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