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Kyoya
Kyoya
and Permutation 找规律
B.KyoyaandPermutationtimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputLet’sdefinethepermutationoflengthnasanarrayp = [p1, p2, …, pn]consistingofndistinctinte
相知无悔
·
2020-08-11 18:10
cf
思考题
Codeforces554D:
Kyoya
and Permutation
Let'sdefinethepermutationoflengthnasanarrayp = [p1, p2, ..., pn]consistingofndistinctintegersfromrangefrom1ton.Wesaythatthispermutationmapsvalue1intothevaluep1,value2intothevaluep2andsoon.KyotaOotorih
键盘上的舞者
·
2020-08-11 17:32
数学
几何
CodeForces 553B
Kyoya
and Permutation(找规律)
链接:http://codeforces.com/problemset/problem/553/BB.KyoyaandPermutationtimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputLet'sdefinethepermutationoflengthnasan
hellohelloC
·
2020-08-11 16:39
找规律
Codeforces 553B
Kyoya
and Permutation
Let'sdefinethepermutationoflengthnasanarrayp = [p1, p2, ..., pn]consistingofndistinctintegersfromrangefrom1ton.Wesaythatthispermutationmapsvalue1intothevaluep1,value2intothevaluep2andsoon.KyotaOotorih
spongewxy
·
2020-08-11 16:13
Codeforces
codeforces 553E -
Kyoya
and Train
一个有向图,走每条边有个代价,且花费的时间从1~T有个概率p[e][i],从1到n,若到达时时间超过T,则需要额外X的花费,问期望最小花费令f[i][j]表示在j时刻从i出发到达n的最小期望,因为虽然每条边花费的时间是不确定的,但至少是1,所以(i,j)这个分层图实际上是一个DAG,就可以dp了对于一条边e:u−>v,有f[u][t]=min(ei+∑Tj=1f[v][t+j]∗p[e][j])当
L_0_Forever_LF
·
2020-08-11 16:28
codeforces
快速傅里叶变换(FFT)
DP
分治
最短路
Codeforces 553E:
Kyoya
and Train (最短路+概率DP+分治+FFT)
题目传送门:http://codeforces.com/contest/553/problem/E题目大意:给出一幅n个点m条边的有向图,并给出参数T,你要从1号点走到n号点。经过每一条边都要花费时间和金钱,第i条边需要花费cost[i]的金钱,并且经过该边花费时间为t的概率是p[i][t](1#include#include#include#include#include#include#inc
KsCla
·
2020-08-09 06:38
DP
最短路
CDQ分治
FFT-NTT
Codeforces--554C--
Kyoya
and Colored Balls(组合数学)
KyoyaandColoredBallsTimeLimit:2000MSMemoryLimit:262144KB64bitIOFormat:%I64d&%I64uSubmitStatusDescriptionKyoyaOotorihasabagwithncoloredballsthatarecoloredwithkdifferentcolors.Thecolorsarelabeledfrom1to
playboy307
·
2020-07-31 21:11
数学
CodeForces 553 B.
Kyoya
and Permutation(组合数学)
Description给出一个长度为nn的排列p1...pnp1...pn,找到pp序列拆成循环置换,然后对每个循环内部将数字从大到小排序,再把所有循环按最大值从小到大排序,如果经过以上操作后序列不变,则称该序列是稳定的,求所有长度为nn的排列中字典序第kk小的排列Input两个整数n,k(1≤n≤50,1≤k≤min(1018,l))n,k(1≤n≤50,1≤k≤min(1018,l)),其中l
v5zsq
·
2020-07-31 15:00
Code
Forces
组合数学
CodeForces 553 A.
Kyoya
and Colored Balls(组合数学)
Description有k种颜色的包,第i种颜色的包有ai个,现在要将这些包排成一列,要求最后一个第i种颜色的包的位置必然在最后一个第i+1种颜色的包的位置前面,问方案数Input第一行一整数k表示颜色数,之后输入k个整数ai表示第i种颜色包的数量(1≤k≤1000,1≤ai≤1000,1≤∑i=1kai≤1000)Output输出方案数,结果模109+7SampleInput3221Sample
v5zsq
·
2020-07-31 15:00
Code
Forces
组合数学
CF553E
Kyoya
and Train
Link设\(f_{u,i}\)表示\(i\)时刻到\(u\)的最小答案,那么我们有:\(f_{u,i}=\min\limits_{(u,v,w,id)\inE}(w+\sum\limits_{j=0}^tf_{v,,i+j}p_{id,j})\)。令\(g_{e,i}\)表示\(i\)时刻走上\(e\)这条边的最小答案,那么我们有:\(g_{e,i}=w_e+\sum\limits_{j=1}^
Shiina_Mashiro
·
2020-01-31 11:00
Kyoya
and Colored Balls
https://codeforces.com/gym/253910/problem/FF.KyoyaandColoredBallstimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputKyoyaOotorihasabagwithncoloredballsthatarec
Echo宝贝儿
·
2019-09-30 16:00
@codeforces - 553E@
Kyoya
and Train
目录@description@@solution@@part-1@@part-2@@part-3@@acceptedcode@@details@@description@一个n点m边的有向轨道系统,每条边有一个费用,KyoyaOotori从点1出发去点n。由于这个轨道系统不太完美,所以每条边消耗的时间是[1,t]中的某个整数。现在已知第i条边消耗时间j的概率。如果KyoyaOotori在严格大于t
Tiw_Air_OAO
·
2018-12-26 16:00
51Nod 1453(CF553-A) - 抽彩球(
Kyoya
and Colored Balls) - 解题报告
51Nod1453-抽彩球-解题报告51Nod1453-抽彩球-解题报告InformationSourceDescriptionInputOutputSampleScanPrintExplanationSolve方法1:组合数学方法2:动态规划Informationtimelimit1000msmemorylimit131072KBlevel四级算法题SourceSpecialitycodefor
TOP-SECRET
·
2018-05-16 14:58
动态规划
排列组合
Android学习(九)@SerializedName注解的意义
1{2"id":"1"3"n":"
kyoya
"4"p":"123456"5"s":"0"6}1publicclassUser{2privateStringid;3privateStringn;4privateStringp
Mr-tao
·
2017-08-19 20:47
Android相关
CodeForces 554A
Kyoya
and Photobooks
KyoyaandPhotobooksTimeLimit:2000MS MemoryLimit:262144KB 64bitIOFormat:%I64d&%I64uSubmit Status Practice CodeForces554ADescriptionKyoyaOotoriissellingphotobooksoftheOuranHighSchoolHostClub.Heh
zhuyu__com
·
2016-05-12 10:00
codeforces
554A
Kyoy
【CodeForces】554A -
Kyoya
and Photobooks(思维)
A.KyoyaandPhotobookstimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputKyoyaOotoriissellingphotobooksoftheOuranHighSchoolHostClub.Hehas26photos,labeled"a"to"z"
wyg1997
·
2016-04-22 08:00
CodeForces - 554C
Kyoya
and Colored Balls (组合数学&逆元模板)
CodeForces-554CKyoyaandColoredBallsTimeLimit: 2000MS MemoryLimit: 262144KB 64bitIOFormat: %I64d&%I64uSubmit StatusDescriptionKyoyaOotorihasabagwith n coloredballsthatarecoloredwith k differentcolors.T
yanghui07216
·
2016-04-21 21:00
CodeForces - 554A
Kyoya
and Photobooks (水)
CodeForces-554AKyoyaandPhotobooksTimeLimit: 2000MS MemoryLimit: 262144KB 64bitIOFormat: %I64d&%I64uSubmit StatusDescriptionKyoyaOotoriissellingphotobooksoftheOuranHighSchoolHostClub.Hehas26photos,labe
yanghui07216
·
2016-04-21 21:00
CodeForces 554A-
Kyoya
and Photobooks【规律】
A.KyoyaandPhotobookstimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputKyoyaOotoriissellingphotobooksoftheOuranHighSchoolHostClub.Hehas26photos,labeled"a"to"z"
qq_29600137
·
2016-04-21 19:00
codeforces
Codeforces 554C
Kyoya
and Colored Balls 【dp + 组合数学】
题目链接:Codeforces554CKyoyaandColoredBallsC.KyoyaandColoredBallstimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputKyoyaOotorihasabagwithncoloredballsthatarecolor
chenzhenyu123456
·
2016-04-21 18:00
Codeforces 554A
Kyoya
and Photobooks 【水题】
题目链接:Codeforces554AKyoyaandPhotobooksA.KyoyaandPhotobookstimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputKyoyaOotoriissellingphotobooksoftheOuranHighSchoolH
chenzhenyu123456
·
2016-04-21 18:00
Codeforces--554C--
Kyoya
and Colored Balls(组合数学)
KyoyaandColoredBallsTimeLimit: 2000MS MemoryLimit: 262144KB 64bitIOFormat: %I64d&%I64uSubmit StatusDescriptionKyoyaOotorihasabagwith n coloredballsthatarecoloredwith k differentcolors.Thecolorsarelabe
qq_29963431
·
2016-04-21 15:00
Codeforces Round #309 (Div. 2) D -
Kyoya
and Permutation ,和dp相关的xjb搞的题
这种题看起来题意都会很复杂的:对于1-n的序列:比如4.1.6.2.5.3。。。。1对应4,4对应2,所以(142)是一个集合,同理有(36)(5)现在要将这些集合排序,集合内部按从大到小排列,集合与集合之间按第一个数从小到大排。比如:上述的序列变成:(421)(5)(63)现在定义一些序列,经过上述的操作之后不会发生改变,比如:1324;(1)(32)(4)现在给出n,k。求1-n的序列中所有不
qq_24664053
·
2016-04-20 23:00
Kyoya
and Photobooks
题目传送门 1 /* 2 找规律,水 3 */ 4 #include <cstdio> 5 #include <iostream> 6 #include <algorithm> 7 #include <cstring> 8 #include <cmath> 9 using namespace std
·
2015-11-11 12:29
codeforces
CF R309C 554C
Kyoya
and Colored Balls
554C
Kyoya
and Colored Balls 即求 复合条件的序列数量 序列最后一位必定是K。 那么对于c[k]-1个剩下的K,有n-1个位置去放置。
·
2015-11-11 11:07
color
Codeforces Round#309 C
Kyoya
and Colored Balls
给定一个k表示颜色的种类从1到k 然后接下来k行, 每行一个数字, 代表该颜色的球有多少个 这些球都放在一个包中,然后依次拿出。 要求颜色i的最后一个球, 必须要排在颜色i+1的最后一个球前面, 1<=i<=k-1 我们先从小规模判断起来, 当k=2时, 当k=3时, a[2]-1个球可以在已经排好的 每个排列中的 a[0
·
2015-11-02 09:14
codeforces
暑假集训-组合数学及数论
群——Burnside定理 容斥原理 12 / 58 Problem A CodeForces 554C
Kyoya
and Colored Balls
·
2015-10-27 13:32
数学
Kyoya
and Permutation 构造
Kyoya
and Permutation Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/553
·
2015-10-23 09:46
codeforces
Kyoya
and Colored Balls 排列组合
Kyoya
and Colored Balls Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest
·
2015-10-23 09:46
codeforces
Kyoya
and Photobooks 字符串水题
Kyoya
and Photobooks Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/554
·
2015-10-23 09:46
codeforces
Codeforces Round #309 (Div. 2)
Kyoya
and Photobooks
Kyoya
Ootori is selling photobooks of the Ouran High School Host Club.
·
2015-10-21 11:10
codeforces
Kyoya
and Colored Balls-组合数学
http://codeforces.com/contest/554/problem/C题意可看作 给m个颜色的气球,每种颜色有一定数量(至少为1)然后构造出第k个颜色的气球后面不存在有比k小的颜色的气球存在。。。的方案数正向构造毕竟麻烦,最最后一个入手比较简单、气球总是为sum、第i种颜色气球有a[i]个最后一个肯定是第K个颜色,因为序列长度固定为sum,所以第k个颜色摆放方案是C(sum-1,a
viphong
·
2015-10-06 16:00
Kyoya
and Photobooks-水题
给出一个长度不超过20的字符串(小写字母组成)让你插入一个字母(任意位置)求得到不同字符串的方案长度为n的字符串有n+1个空位....第一个位置有26种。。剩下的位置 只需要和前一个位置避免重复就好。。所以都是25种、、所以答案就是26+25*n#include #include #include #include #include #include #include #include #incl
viphong
·
2015-10-06 12:00
CodeForces 553B
Kyoya
and Permutation(找规律)
链接:http://codeforces.com/problemset/problem/553/BB.KyoyaandPermutationtimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputLet'sdefinethepermutationoflengthnasan
hellohelloC
·
2015-08-21 10:00
CodeForces 553A
Kyoya
and Colored Balls (排列组合)
http://codeforces.com/problemset/problem/553/AA.KyoyaandColoredBallstimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputKyoyaOotorihasabagwithncoloredballsthata
hellohelloC
·
2015-08-20 18:00
Kyoya
and Permutation 找规律
B.KyoyaandPermutationtimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputLet’sdefinethepermutationoflengthnasanarrayp = [p1, p2, …, pn]consistingofndistinctinte
u010422038
·
2015-07-16 18:00
Kyoya
and Colored Balls
KyoyaOotorihasabagwith n coloredballsthatarecoloredwith k differentcolors.Thecolorsarelabeledfrom 1 to k.Ballsofthesamecolorareindistinguishable.Hedrawsballsfromthebagonebyoneuntilthebagisempty.Henoti
Kirito_Acmer
·
2015-07-10 14:00
codeforces
Kyoya
and Colored Balls
C.KyoyaandColoredBallstimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputKyoyaOotorihasabagwith n coloredballsthatarecoloredwith k differentcolors.Thecolorsare
u010422038
·
2015-07-04 00:00
Kyoya
and Photobooks
1.题目描述:点击打开链接2.解题思路:本题实质上在问:给定一个长为L的字符串,在26个字符中选一个字符插入该串,可以形成多少个新的字符串。这就是一个简单的计数问题,长度为L的字符串有L+1个空位可以插入,一共有26*(L+1)个方法,考虑到相同字符的情况,要减去一个,一共有L种重复的情况,因此最终有26*(L+1)-L=25*(L+1)+1种情况。3.代码:#define_CRT_SECURE_
u014800748
·
2015-07-02 11:00
计数
Codeforces Round #309 (Div. 1) A
Kyoya
and Colored Balls
题意:给你K种颜色的球,第i种颜色的球有Si个(K #include #include #defineLLlonglong #defineMOD1000000007 LLA[1111]; LLC[1010][1010]; intmain() { C[0][0]=1; for(inti=1;i=1;i--) { ans=(ans*C[sum-1][A[i]-1])%MOD; sum-=A[i];
u012659423
·
2015-06-27 20:00
Kyoya
and Colored Balls(Codeforces Round #309 (Div. 2))
C.KyoyaandColoredBallsKyoyaOotorihasabagwith n coloredballsthatarecoloredwith k differentcolors.Thecolorsarelabeledfrom 1 to k.Ballsofthesamecolorareindistinguishable.Hedrawsballsfromthebagonebyoneunt
u010579068
·
2015-06-26 14:00
组合
数论
round
codeforces
and
C.
Colored
Kyoya
#30
Kyoya
and Photobooks(Codeforces Round #309 (Div. 2))
A.KyoyaandPhotobooks KyoyaOotoriissellingphotobooksoftheOuranHighSchoolHostClub.Hehas26photos,labeled"a"to"z",andhehascompiledthemintoaphotobookletwithsomephotosinsomeorder(possiblywithsomephotosbeing
u010579068
·
2015-06-26 14:00
水题
and
Kyoya
A.
Photobo
Kyoya
and Photobooks
题目链接:http://codeforces.com/contest/554/problem/A#include #include usingnamespacestd; intmain() { chars[25]; while(cin>>s) { intlen=strlen(s); intsum=26*(len+1)-len; cout<<sum<<endl; } return0; }
qingshui23
·
2015-06-25 19:00
水
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