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codeforce
Codeforce
s Round #638 (Div. 2) BC
B要构造一个循环节为k的字符串计算相异元素个数c，若c>k，不可能构造若cusingnamespacestd;constintMAX_N=105;inta[MAX_N],cnt[MAX_N],v[MAX_N];vectortab;intmain(){intt;cin>>t;while(t--){memset(cnt,0,sizeof(cnt));memset(v,0,sizeof(v));tab.
とと
·
2020-08-25 05:42
Codeforce
s Round #639 (Div. 2) BC
B找规律可以想象为\\这样斜向右的摆放，每加一层，相当于把最右边的\向右平移复制一次，再加上最顶部的3个#includeusingnamespacestd;typedeflonglongll;constintMAX_N=3e4+5;longlongf[MAX_N];intmain(){f[1]=2;llx=5;longlongmx=30000;for(inti=2;i>t;while(t--){i
とと
·
2020-08-25 05:42
codeforce
s 排位赛4
传送门题面B.DiverseGarlandtimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputYouhaveagarlandconsistingofnlamps.Eachlampiscoloredred,greenorblue.Thecolorofthei-thlamp
とと
·
2020-08-25 05:41
2019寒假专题一 L
CodeForce
s - 1260B
题面B.ObtainTwoZeroestimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputYouaregiventwointegersaandb.Youmayperformanynumberofoperationsonthem(possiblyzero).Duringe
とと
·
2020-08-25 05:41
codeforce
s 排位赛3
传送门题面A.WormholeSorttimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputFarmerJohn’scowshavegrowntiredofhisdailyrequestthattheysortthemselvesbeforeleavingthebarne
とと
·
2020-08-25 05:41
Codeforce
s Round #664 (Div. 2) 题解
A.BoboniuLikestoColorBalls查看题解数学B.BoboniuPlaysChess查看题解构造C.BoboniuandBitOperations查看题解位运算+暴力D.BoboniuChatswithDu查看题解贪心
忘梦心
·
2020-08-25 05:37
codeforces
codeforce
s C. Frog Jumps
题目题意：给你一个L,RL,RL,R序列，如果青蛙在LLL上就最多往左边跳d个格子，如果是RRR就最多往右边跳d个格子，问青蛙跳到最右边的格子需要的最小的d是多少。思路：最小的距离其实就是两个RRR之间的间隔，因为题目没说要最小次数，所以也就是说假如我们跳到了LLL上我们就可以跳到最近的一个RRR上面，然后由于这个R再跳到下一个R上，为了计算方便我们可以直接把首尾也设成RRR，如果首尾只能跳到LL
忘梦心
·
2020-08-25 05:37
codeforces
Codeforce
s Round 89 (Rated for Div. 2)
A.ShovelsandSwords题解：假设第一种工具买了x个,第二种买了y个。那么由题可知0≤2x+y≤a{0≤2x+y≤a}0≤2x+y≤a0≤x+2y≤b{0≤x+2y≤b}0≤x+2y≤b求(x+y)max，高中线性规划可以求解。intmain(){intt;cin>>t;while(t--){lla,b;cin>>a>>b;if(2*min(a,b)>t;while(t--){lln,
张小生的先生
·
2020-08-25 05:15
Educational
Codeforce
s Round 92 (Rated for Div. 2)解题报告
Educational
Codeforce
sRound92(RatedforDiv.2)A.LCMProblem题目大意给定区间[l,r][l,r][l,r]，让你找到正整数xxx，yyy满足l≤xry>
CUG_YZL
·
2020-08-25 05:15
codeforces
Codeforce
s Round #624 (Div. 3) A—C
A-AddOddorSubtractEven（奇偶）将x变成y两种操作1，x可以加一个任意的奇数2，x可以减一个任意的偶数判断x与y的奇偶，以及他的大小关系即可代码：#include#include#include#include#include#include#include#include#include#includetypedeflonglongll;#definePllmake_pair
_Alexander
·
2020-08-25 05:41
Codeforces
Codeforce
s Round #641 (Div. 1)
A-OracandLCM先对每一个数字进行质因数分解，记录，该质因数的次方和出现次数。如果出现了n-1次，那么答案有该质因数最小次方。如果出现了n次，那么答案拥有该质因数次小次方。#include#include#include#include#include#include#include#include#include#include#include#include//#include#inc
weixin_44019404
·
2020-08-25 05:10
规律
最短路
数学
Codeforce
s Round #587 (Div. 3) C. White Sheet
题目http://
codeforce
s.com/contest/1216/problem/C题意给你三个矩形的左下角坐标和右上角坐标。第一个矩形为白矩形，第二第三个为黑矩形。
皓洲
·
2020-08-25 05:05
Codeforces
补题库
CodeForce
s - 266A——Stones on the Table
StonesontheTableTherearenstonesonthetableinarow,eachofthemcanbered,greenorblue.Counttheminimumnumberofstonestotakefromthetablesothatanytwoneighboringstoneshaddifferentcolors.Stonesinarowareconsideredn
螢塚
·
2020-08-25 05:33
ACM训练题
CodeForce
s - 492A（第三期白银组比赛T2）
Timelimit1000msMemorylimit262144kBVanyagotncubes.Hedecidedtobuildapyramidfromthem.Vanyawantstobuildthepyramidasfollows:thetoplevelofthepyramidmustconsistof1cube,thesecondlevelmustconsistof1 + 2 = 3cub
糖贩
·
2020-08-25 05:33
Codeforce
s Round #624 (Div. 3) A - Add Odd or Subtract Even
AddOddorSubtractEventimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputYouaregiventwopositiveintegersaaandbb.Inonemove,youcanchangeaainthefollowingway:Choosean
菱形继承
·
2020-08-25 05:26
#
Codeforces
Codeforce
s Round #491 (Div. 2)题解
A.Ifatfirstyoudon’tsucceed…timelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputEachstudenteagerlyawaitsthedayhewouldpasstheexamssuccessfully.Thus,Vasyawasreadyto
ssqsssq
·
2020-08-25 05:54
Codeforces
Frog Jumping
https://
codeforce
s.com/contest/1077/problem/Atimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputAfrogiscurrentlyatthepoint0onacoordinateaxisOx.Itjumpsbythefollo
STZG
·
2020-08-25 05:10
#
C++
Codeforce
s Round #587 (Div. 3)E2. Numerical Sequence (hard version)（二分）
题目：E2.NumericalSequence(hardversion)题意：一串数11212312341234512345612345671234567812345678912345678910……有q(qusingnamespacestd;typedeflonglongll;inlinellget_sum(llx){//从1~区间长度x的前x项和returnx*(x+1)/2;}inlinel
Mr.路痴
·
2020-08-25 05:37
算法与数据结构
Educational
Codeforce
s Round 61 (Rated for Div. 2) F题解
FYouaregivenastringssoflengthnnconsistingoflowercaseLatinletters.Youmayapplysomeoperationstothisstring:inoneoperationyoucandeletesomecontiguoussubstringofthisstring,ifalllettersinthesubstringyoudelete
weixin_42754967
·
2020-08-25 05:05
dp
【
Codeforce
s】1216B - Shooting
ProblemDescription：RecentlyVasyadecidedtoimprovehispistolshootingskills.Todayhiscoachofferedhimthefollowingexercise.Heplacedncansinarowonatable.Cansarenumberedfromlefttorightfrom1ton.Vasyahastoknockdo
喜欢ctrl的cxk
·
2020-08-25 05:31
C++
非降路径和Lindström–Gessel–Viennot定理（例题 牛客网暑期ACM多校训练营（第一场）A.Monotonic Matrix）（
codeforce
s 348D HDU 5852）
参考博客and图片来源https://blog.csdn.net/ftx456789/article/details/81132126非降路径就是给定一个起点（0,0）和终点（m,n），然后只能向右或者向上走。非降路径问题转换为组合数可以认为总共有n+m种选择，从中选出m步向右走，或者选择n步向上走，则可得路径的方案数为或。Lindström–Gessel–Viennot定理详见维基百科：http
Bug_Programmer
·
2020-08-25 05:54
学习随笔
Educational
Codeforce
s Round 47 B Minimum Ternary String[字符串]
B.MinimumTernaryStringtimelimitpertest:1secondmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputYouaregivenaternarystring(itisastringwhichconsistsonlyofcharacters'0','1'and'2').Yo
Whowell
·
2020-08-25 05:35
字符串
codeforce
s679 D. Bear and Chase
codeforce
s679D.BearandChasehttp://blog.csdn.net/Ezereal/article/details/52743686DBearandChaseO(n^3)暴力首先
weixin_34341229
·
2020-08-25 05:40
Codeforce
s 321A
x[i]表示：从第一步到第i步为止，横坐标的位置；y[i]表示：从第一步到第i步为止，纵坐标的位置；设字符串S的长度为len;则有k*x[len]+x[i]=a;而且k*y[len]+y[i]=b;（这里下标从1开始），而且要注意的是k为非负整数，还要考虑x[len]或y[len]为0的情况。然后从1到len枚举i就可以了。附上代码：1#byStomach_ache2defmove(s,i):3i
weixin_34021089
·
2020-08-25 05:47
如何获取
codeforce
s的完整数据？（玄学方法）
做cf题总是wa，wa了以后还没发看完整数据，好气哦！怎么办？这其实非常简单首先看一下wa的那个数据有什么特点比如说n=1111,m=1111那么就if(n==1111&&m==1111)getdata();getdata()是什么，其实就是把数据按行输出出来的程序因为cf的输入数据只能显示一部分，但是输出数据我们可以自我调整把输入数据进行分块处理，然后按行输出cf显示输出数据是可以显示20行的，
weixin_33800463
·
2020-08-25 05:01
CF492E Vanya and Field
题目描述：http://
codeforce
s.com/problemset/problem/492/E（英文题）翻译不写了大家都能看懂。看到这道题的第一想法是啥……？暴力模拟？
weixin_30918415
·
2020-08-25 05:53
Codeforce
s Round #477 (rated, Div. 2, based on VK Cup 2018 Round 3) C. Stairs and Elevators【二分查找】...
Intheyearof30XX30XXparticipantsofsomeworldprogrammingchampionshipliveinasinglelargehotel.Thehotelhasnnfloors.Eachfloorhasmmsectionswithasinglecorridorconnectingallofthem.Thesectionsareenumeratedfrom11
yuxiaoyu.
·
2020-08-25 05:21
Codeforce
s Round #465 (Div. 2) Fifa and Fafa
C.FifaandFafatimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputFifaandFafaaresharingaflat.Fifalovesvideogamesandwantstodownloadanewsoccergame.Unfortunately,Faf
weixin_30737433
·
2020-08-25 05:44
Codeforce
s题目
A-WatermelonCrawlinginprocess...CrawlingfailedTimeLimit:1000MSMemoryLimit:65536KB64bitIOFormat:%I64d&%I64uSubmitStatusDescriptionOnehotsummerdayPeteandhisfriendBillydecidedtobuyawatermelon.Theychoseth
weixin_30725315
·
2020-08-25 05:12
Codeforce
s Round #277.5 (Div. 2)
题目链接：http://
codeforce
s.com/contest/489A：SwapSortInthisproblemyourgoalistosortanarrayconsistingofnintegersinatmostnswaps.Forthegivenarrayfindthesequenceofswapsthatmakesthearraysortedinthenon-descending
weixin_30517001
·
2020-08-25 05:02
CodeForce
s - 321E Ciel and Gondolas
DiscriptionFoxCielisintheAmusementPark.AndnowsheisinaqueueinfrontoftheFerriswheel.Therearenpeople(orfoxesmoreprecisely)inthequeue:weusefirstpeopletoreferoneattheheadofthequeue,andn-thpeopletoreferthel
weixin_30488313
·
2020-08-25 05:30
CodeForce
s 492A Vanya and Cubes
A.VanyaandCubestimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputVanyagotncubes.Hedecidedtobuildapyramidfromthem.Vanyawantstobuildthepyramidasfollows:thetoplev
weixin_30480583
·
2020-08-25 05:59
网络流（费用流）
CodeForce
s 321B：Ciel and Duel
FoxCielisplayingacardgamewithherfriendJiro.Jirohasncards,eachonehastwoattributes:position(AttackorDefense)andstrength.FoxCielhasmcards,eachonehasthesetwoattributestoo.It'sknownthatpositionofallCiel'sc
weixin_30466039
·
2020-08-25 05:58
Codeforce
s Round #277.5 (Div. 2) A,B,C,D,E,F题解
转载请注明出处：http://www.cnblogs.com/fraud/——byfraudA.SwapSorttimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputInthisproblemyourgoalistosortanarrayconsistingofninte
weixin_30293135
·
2020-08-25 04:49
Codeforce
s Gym100952 D. Time to go back-杨辉三角处理组合数 (2015 HIAST Collegiate Programming Contest)...
D.Timetogobacktimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputYouhavebeenoutofSyriaforalongtime,andyourecentlydecidedtocomeback.YourememberthatyouhaveMfriend
weixin_30263277
·
2020-08-25 04:17
如何获取
codeforce
s的完整数据
推荐：如何获取
codeforce
s的完整数据？
weixin_30240349
·
2020-08-25 04:46
codeforce
s round477
codeforce
sround477好久没打cf了，回来打一场，pp了4个题的fst了三个，掉了100多分。好像cf已经三连掉从接近2000掉到1700+了。老年选手打什么cf嘛。
wcy_1122
·
2020-08-25 04:45
题解
套题总结
贪心
构造
CodeForce
s 158B taxi
AfterthelessonsngroupsofschoolchildrenwentoutsideanddecidedtovisitPolycarpustocelebratehisbirthday.Weknowthatthei-thgroupconsistsofsifriends(1 ≤ si ≤ 4),andtheywanttogotoPolycarpustogether.Theydecided
ELL_COOL_A
·
2020-08-25 04:08
我的CF笔记
Codeforce
s 158B：Taxi
B.Taxitimelimitpertest3secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputAfterthelessonsngroupsofschoolchildrenwentoutsideanddecidedtovisitPolycarpustocelebratehisbirthday.Wek
_执念_
·
2020-08-25 04:07
Codeforces
Anya and Ghosts -
CodeForce
s 508 C 水题
AnyaandGhoststimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputAnyalovestowatchhorrormovies.Inthebesttraditionsofhorror,shewillbevisitedbymghoststonight.Anyah
提比-我有特殊的AC技巧
·
2020-08-25 04:24
CodeForces
水题
Codeforce
s Round #280 (Div. 2) A B C
http://
codeforce
s.com/contest/492A水题A.VanyaandCubestimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputVanyagotncubes.Hedecidedtobuildapyramidfromthem.Vanyawants
mfcheer
·
2020-08-25 04:50
Codeforce
s Round #280 (Div. 2)A B C
A-VanyaandCubes:#include#include#includeusingnamespacestd;typedef__int64ll;constintN=10005;lla[N];intmain(){a[0]=0;for(lli=1;in)ans--;printf("%d\n",ans);}return0;}B-VanyaandLanterns:#include#include#i
zxxxxzzz
·
2020-08-25 04:48
CF
Codeforce
s 258B. Little Elephant and Elections【数位DP，DFS】
B.LittleElephantandElectionstimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputTherehaverecentlybeenelectionsinthezoo.Overalltherewere7mainpoliticalparties:one
朽弈
·
2020-08-25 04:16
codeforces
dfs
动态规划
ACM之路
ACM
C++
dp
dfs
Codeforce
s 140E New Year Garland (dp + 容斥)
#include#include#include#include#include#include#include#include#includeusingnamespacestd;#defineinf0x3f3f3f3f#defineN5020#defineM1000020#defineLLlonglong#definemod1000000007#definels(i>1)#definelsonl
yamiedie_
·
2020-08-25 04:44
codeforces
组合计数
Codeforce
s Round #243 (Div. 2) A,B,C(暴力枚举)
A.SerejaandMugs思路:大水杯的水是累计的..定定要改掉自己读题猴急的毛病!!CODE:#include#include#include#includeusingnamespacestd;intmain(){intn,m;while(~scanf("%d%d",&n,&m)){inta[105],s=0;for(inti=0;i#includeusingnamespacestd;int
HonniLin
·
2020-08-25 04:13
CF
Codeforce
s Round #369 (Div. 2) B. Chris and Magic Square
B.ChrisandMagicSquaretimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputZStheCoderandChristheBaboonarrivedattheentranceofUdayland.Thereisan × nmagicgridontheen
神探特斯拉
·
2020-08-25 04:13
Codeforce
s Round #222 (Div. 2)---A. Playing with Dice
PlayingwithDicetimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputTwoplayersareplayingagame.Firsteachofthemwritesanintegerfrom1to6,andthenadiceisthrown.Theplaye
sxk_sxy
·
2020-08-25 04:12
暴力
Codeforces
Codeforces
Codeforce
s Round #280 (Div. 2)---A. Vanya and Cubes （规律 + 暴力）
VanyaandCubestimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputVanyagotncubes.Hedecidedtobuildapyramidfromthem.Vanyawantstobuildthepyramidasfollows:thetoplevel
sxk_sxy
·
2020-08-25 04:12
Codeforces
【
codeforce
s】
Codeforce
s Round #280 (Div. 2) 水题专场
传送门：【
codeforce
s】
Codeforce
sRound#280(Div.2)492A.VanyaandCubes找到最大的i使得1+2+3+……+i小于等于n，并且输出i。
poursoul
·
2020-08-25 04:11
题解
CodeForce
Round #484 B - Bus of Characters(思维+栈)
题目链接题目大意：公交车有n排座位，每排的座位有两个，且这两个座位的宽度一样。任何两排座位的宽度度都不一样。首先给你一个n，接下来给你n个数字代表第i排座位的宽度。然后给你一个01字符串代表乘客上车的顺序。0和1分别代表内向的人和外向的人。内向的人会从没有人坐的那几排选出一个宽度最小的那排座。外向的人会从有一个人坐的那几排选出宽度最大的那排座。题目要求你根据上车的顺序输出他们应该坐第几排。解题思路
糖宋元明清
·
2020-08-25 04:11
ac的题
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