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「CF528A」Glass Carving
Leonidwantstobecomeaglasscarver(thepersonwhocreatesbeautifulartworksbycuttingtheglass).Healreadyhasarectangularwmm × hmmsheetofglass,adiamondglasscutterandlotsofenthusiasm.Whathelacksisunderstandingofwhattocarveandhow.Inordernottowastetime,hedecidedtopracticethetechniqueofcarving.Todothis,hemakesverticalandhorizontalcutsthroughtheentiresheet.Thisprocessresultsinmakingsmallerrectangularfra...
「codechef」March Challenge 2015
只做了前6题弃疗了感觉codechef写题解也没啥人看……「codechefCNOTE」ChefandNotebooks纯模拟[crayon-69112c06d6259282744061/]「codechefSIGNWAVE」SignWave听说此题打表可以找规律。。引用zld神犇的话吧。。。就是若干个余弦函数的零点均不同。。然后sin函数的分布就十分奇怪了。。比如s=3的时候就是312131213，忽略两端的情况。。就变成非常规则的1213121然后我们再考虑余弦函数当c=2的时候分布就是011101110...
「CFgym100541」ATM withdrawal
VinhworksforanATMmachinemanufacturingcompany.ThebasicfunctionalityofanATMmachineiscashwithdrawal.WhenauserrequestsacashwithdrawalofWVND(VietnameseDong),theATMhastodispenseNmoneynotessuchthattheysumuptoW.ForthenextgenerationofATMmachine,VinhisworkingonanalgorithmtominimizethenumberNofmoneynotesforeachcashwithdrawaltransaction.YourtaskistohelpVinhtodohisjobgiventhatthemon...
「CFgym100541」Pencil Game
Minhhasaboxofpencils.TheboxisarectangleofsizeM * N,whereposition(i, j)hasapencilwithalengthofexactlyi * N + j(0 ≤ i ≤ M - 1, 0 ≤ j ≤ N - 1).Notethatposition(0, 0)doesnothaveanypencilhencehavingalengthof0.Hewondersifhecouldselectasub-rectangleoftheboxandjoinallthepencilswithinthatsub-rectangletogether,togetanewlongpencilthathasaspecificlengthLthathewants.Yourta...
「CFgym100541」Treasure Box
Yourteamwasexploringanancientcity.Suddenlyyoufoundanoldscrollwith2integernumbersNandK,whichencryptsthesecretcodetoopenatreasurebox.ConsideringatransformationonanintegerXdescribedasfollows:X = X + X mod 100,thesecretcodecanbeobtainedbyapplyingtheabove-describedtransformationKtimessuccessivelytoN.InputTheinputfileconsistsofseveraldatasets.Thefirstlineoftheinputfilecontainsthenumb...
「CF521X」Codeforces Round #295 (Div. 1)
A.DNAAlignment发现每俩个字母都会算一次所以只要求出现最多的字母的个数x快速幂求pow(x,n)[crayon-69112c06d7d94512803876/]B.Cubes贪心，依次选择合法的编号最大/最小的，用set，map维护一下一个格子能删当且仅当它上方的格子可以找到其它的支撑[crayon-69112c06d7da1437198322/]C.Pluseseverywhere每一位根据下一个加号位置算贡献，用排列组合算方案或者是后面没有加号延伸到末尾预处理阶乘O1算排列对排列再记录前缀和...
「BZOJ2796」[POI2012] Fibonacci Representation
![「BZOJ2796」[POI2012] Fibonacci Representation](http://hzwer.com/wp-content/themes/ly/image/image_post/2014-12-10_12-32-52.jpg)
DescriptionFib数列0,1,1,2,3,5,8,13,21。给出一个数字，用FIB数列各项加加减减来得到。例如10=5+519=21-217=13+5-11070=987+89-5-1InputInthefirstlineofthestandardinputasinglepositiveintegerisgiven（1<=P<=10）thatdenotesthenumberofqueries.ThefollowinglinesholdasinglepositiveintegerKeach1<=K<=10^17.OutputForeachqueryyourprogramshouldprintonthestandardoutputtheminimumnumberofFibona...
「topcoder」Kodifica – Pratice Round 1
打了场莫名其妙的比赛150Youneedtoupdatethebalanceinyourcheckbook.Youknowyourstartingbalance,thetotalamountspentusingyourdebitcard,andthetotalvalueofchecksthathavebeenwritten.Returnyourendingbalance.a-b-c。。。[crayon-69112c06d8ce9151999352/]500Preparinganationalbudgetinvolvessumsoflargenumbers.Thesenumbersshouldbeformattedinaniceway.Yourtaskis,givensomenicelyformattedcosts(inUSdollarsandcen...
「topcoder」Single Round Match 652 – Round 1 Div2
topcoder怎么会把客户端做成这样差评第一场只能打div2TAT250Youaregivenastringsconsistingoflowercaseletters.Weassigntheletters'a'to'z'valuesof1to26,respectively.WewilldenotethevalueassignedtotheletterXbyval[X].Forexample,val['a']=1andval['e']=5.Wedefinethevalueofthestringsasfollows.Foreachletters[i],letk[i]bethenumberoflettersinsthatarelessthanorequaltos[i],includings[i]itself.Then,thevalu...
「BZOJ3728」PA2014Final Zarowki
Description有n个房间和n盏灯，你需要在每个房间里放入一盏灯。每盏灯都有一定功率，每间房间都需要不少于一定功率的灯泡才可以完全照亮。你可以去附近的商店换新灯泡，商店里所有正整数功率的灯泡都有售。但由于背包空间有限，你至多只能换k个灯泡。你需要找到一个合理的方案使得每个房间都被完全照亮，并在这个前提下使得总功率尽可能小。Input第一行两个整数n,k(1<=k<=n<=500000)。第二行n个整数p[i](1<=p[i]<...
「codechef」January Lunchtime 2015
Pieceofcake 统计每个字母出现次数，取最大值，判断其是否等于l/2[crayon-69112c06da2b1834950570/]Justmultiply 乘法快速乘即可，但乘方由于M过大。。使用欧拉函数降幂比较麻烦。。发现a^(10b+c)=(a^b)^10*a^c然后就能On算出表达式了^10可以看做常数[crayon-69112c06da2be824648015/]Candidatewalk状压一下，转移显然[crayon-69112c06da2c7586235347/]Manybananas这一题比较有意思将宗族大小分为<=300和>300用数组统...
「CF519X」Codeforces Round #294 (Div. 2)
「cf519A」AandBandChess模拟[crayon-69112c06daaca600488443/]「cf519B」AandBandCompilationErrors排序，双指针对比用个hash/map统计下元素出现次数[crayon-69112c06daad9518930011/]「cf519C」AandBandTeamTraining实际上答案是min(n,m,(m+n)/3)我分类讨论了TAT还是很好yy的[crayon-69112c06daae5536685738/]「cf519D」AandBandInterestingSubstringsa[i][j]表示前缀和为i，字母j为末尾的前缀数量每次查询...
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