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Crossing
寻路,判断是否连通
static double MAX_SLOPE = 10000.0; static double MIN_SLOPE = 0.00001; void get_y_
crossing
( double
·
2015-11-11 19:32
判断
Crossing
River poj1700贪心
题目描述:N个人过河,只有一只船,最多只能有两人划船,每个人划船速度不同,船速为最慢的人的速度。输入T为case个数,每个case输入N为人数,接下来一行输入的是每个人过河的时间,都不相同。要求输出N个人全部过河的时间 算法思想:采用贪心的方法。有两种划船的方法,一种是最快+最慢,最快回,最快+次慢,最快回,循环下去;第二种是最快+次快,次快回,最慢+次慢,最快回,循环下去。那么当剩余人数N&g
·
2015-11-11 14:34
poj
美国机房一览
路由经优化高速直链亚洲各地区,接入线路 (SIX,MFN,UUNET Sprint,Savvis,XO, Level3, Qwest,Congent,Global
Crossing
,NTT Verio,
·
2015-11-11 11:45
POJ 3416
Crossing
--离线+树状数组
题意: 给一些平面上的点,然后给一些查询(x,y),即以(x,y)为原点建立坐标系,一个人拿走第I,III象限的点,另一个人拿II,IV象限的,点不会在任何一个查询的坐标轴上,问每次两人的点数差为多少。 解法:离线树状数组。点不在坐标轴上,即点不共线使这题简单了不少,可以离散化点,也可以不离散化,因为x,y <= 500000,直接就可以搞。我这里是离散的,其实也没比直接搞快。 见两个树
·
2015-11-11 11:42
树状数组
Crossing
River
题目链接:http://acm.hust.edu.cn/vjudge/problem/visitOriginUrl.action?id=26251 题意 : 有N个人想要过河,但是只有一条船,且船每次最多载2个人,而每次必须有个人把船开回来。每个人过河都会有不同的时间,当两个人一起过河时,过河时间
·
2015-11-11 10:20
SSI
建站相关关键词快速普及
路由经优化高速直链亚洲各地区,接入线路 (SIX,MFN,UUNET Sprint,Savvis,XO, Level3, Qwest,Congent,Global
Crossing
,NTT Verio,
·
2015-11-11 06:33
关键词
poj 1700
Crossing
River(贪心)
分析:题意 源岸数量<=3 很好判断 3:num[0]+num[1]+num[2] 2:num[1] ,1:num[0] 源岸数量>3 #include<iostream> #include<cstdio> #include<cstring> #include<algorithm> using namesp
·
2015-11-08 15:52
poj
USACO6.5-Closed Fences:计算几何
Closed Fences A closed fence in the plane is a set of non-
crossing
, connected line segments with
·
2015-11-08 14:31
USACO
poj 1700
Crossing
River 过河问题。贪心
Crossing
River Time Limit: 1000MS Memory Limit: 10000K Total Submissions:&
·
2015-11-07 13:54
poj
bzoj1617【Usaco2008 Mar】River
Crossing
渡河问题
1617:[Usaco2008Mar]RiverCrossing渡河问题TimeLimit: 5Sec MemoryLimit: 64MBSubmit: 798 Solved: 574[Submit][Status][Discuss]DescriptionFarmerJohn以及他的N(1 #include #include #include #include #defineF(i,j,n)f
AaronGZK
·
2015-11-02 19:00
bzoj
BZOJ 1617: [Usaco2008 Mar]River
Crossing
渡河问题( dp )
dp[ i ] = max( dp[ j ] + sum( M_1 ~ M_( i - j ) ) + M , sum( M_1 ~ M_i ) ) ( 1 <= j < i ) 表示运送 i 只羊的最少时间 , 转移很显然. T T 我自己第一次写时 , dp多带了个k表示第几次送牛过河 , 可是这并没有什么卵用..还 TLE 了... -------
·
2015-11-02 12:47
USACO
UVa 12230 (期望)
Crossing
Rivers
题意: 从A到B两地相距D,之间有n段河,每段河有一条小船,船的位置以及方向随机分布,速度大小不变。每段河之间是陆地,而且在陆地上行走的速度为1.求从A到B的时间期望。 分析: 我们只要分析每段河的期望即可。设河的长度为L,船速为v。过河最短时间为刚好搭上从左向右开的小船L/v;最长时间为刚好没搭上从左向右开的小船,所以要等小船开到对岸再折返回来再到对岸,时间为3L/v,因为是均匀分布,所以
·
2015-11-02 11:36
SSI
cross clock domain
Crossing
clock domains - Signal From: http://www.fpga4fun.com/CrossClockDomain.html A signal
·
2015-11-01 14:36
domain
How to tie your shoes [by:姚铭]
Step 1.Cross your laces through the holes of your shoes, and make an ‘x’ out of the shoelace by
crossing
·
2015-11-01 11:13
you
CDC之Metastability
1 CDC A clock domain
crossing
occurs whenever data is transferred from a flop driven by one
·
2015-11-01 09:05
meta
ZXing
ZXing ("Zebra
Crossing
") ZXing (p
·
2015-10-31 11:11
zxing
Clock Domain Crossings
crossingsWhen a signal goes from one clock domain into an other we have what is called a clock domain
crossing
·
2015-10-31 09:01
domain
Gym 100463A Crossings 逆序对
codeforces.com/gym/100463 Description Given a permutation P of {0, 1, ..., n − 1}, we define the
crossing
·
2015-10-30 18:17
SSI
Crossing
River
Crossing
River 题目链接: http://acm.hust.edu.cn/vjudge/problem/visitOriginUrl.action?
·
2015-10-28 08:40
SSI
Marginal distribution
Imagine for example you want to compute the probability that a pedestrian will be hit by a car while
crossing
·
2015-10-28 08:48
margin
How to tie shoe laces
MethodStep1 Hold one end of the lace in each hand and make an "X" out of the shoelaces by
crossing
·
2015-10-27 14:46
IE
Crossing
River(1700poj)
Crossing
River Time Limit: 1000MS Memory Limit: 10000K Total Submissions:&
·
2015-10-27 14:49
poj
Crossing
River
Crossing
River Time Limit: 1000MS Memory Limit: 10000K Total Submissions:&
·
2015-10-23 08:19
SSI
[MeetCoder]
Crossing
Bridge
Crossing
Bridge Description N people wish to cross a bridge at night.
·
2015-10-21 12:21
bridge
网络安全堪忧 员工上网受限
环球电讯(Global
Crossing
Ltd.)也禁止员工使用即时通讯和网上电子邮箱 。有多家银行则禁止员工
·
2015-10-21 10:35
网络安全
Codeforces Gym 100463A Crossings 逆序数
codeforces.com/gym/100463 Description Given a permutation P of {0, 1, ..., n − 1}, we define the
crossing
·
2015-10-21 10:57
codeforces
数组中子数组最大值----分治思想
数组,参数2:数组起始位置,参数3:数组尾位置的下一个位置intMaxSum(int*,int,int);intSelMaxValue(int,int,int);//选择最大值intFind_Max_
Crossing
_Value
LvDoris
·
2015-10-17 21:40
IT
算法
数组中子数组最大值----分治思想
数组起始位置,参数3:数组尾位置的下一个位置intMaxSum(int*,int,int); intSelMaxValue(int,int,int); // 选择最大值intFind_Max_
Crossing
_Value
LvDoris
·
2015-10-17 21:00
uva 11595 -
Crossing
Streets EXTREME(切割多边形)
题目链接:uva11595-CrossingStreetsEXTREME对初始平面进行切割,得到所有平面,然后处理出所有边,有公共边的两个平面之间可以到达,对于城市的权值可以加到点上,进出各加一次即可。#include #include #include #include #include #include #include usingnamespacestd; typedefpairpii;
u011328934
·
2015-08-31 22:00
poj 1700
Crossing
River(贪心·dp)
题目:http://poj.org/problem?id=1700CrossingRiverTimeLimit: 1000MS MemoryLimit: 10000KTotalSubmissions: 12177 Accepted: 4613DescriptionAgroupofNpeoplewishestogoacrossariverwithonlyoneboat,whichcanatmostc
theArcticOcean
·
2015-08-29 20:00
dp
poj
贪心
POJ 3416
Crossing
DescriptionWintokkhascollectedahugeamountofcoinsatTHU.Onedayhehadallhiscoinsfallenontotheground.Unfortunately,WangDongcamebyanddecidedtorobWintokkofthecoins.Theyagreedtodistributethecoinsaccordingtoth
jtjy568805874
·
2015-08-01 23:00
poj
POJ1700:
Crossing
River(过河问题)
POJ1700 题目链接:http://poj.org/problem?id=1700 Time Limit:1000MS Memory Limit:10000KB
·
2015-07-19 18:00
poj
poj 1700
Crossing
River 【贪心】
CrossingRiverTimeLimit:1000MS MemoryLimit:10000KTotalSubmissions:11557 Accepted:4368DescriptionAgroupofNpeoplewishestogoacrossariverwithonlyoneboat,whichcanatmostcarrytwopersons.Thereforesomesortofshu
chenzhenyu123456
·
2015-05-31 17:00
Codility - Earliest Time Frog
Crossing
River
Question:Asmallfrogwantstogettotheothersideofariver.Thefrogiscurrentlylocatedatposition0,andwantstogettopositionX.Leavesfallfromatreeontothesurfaceoftheriver.Youaregivenanon-emptyzero-indexedarrayAcon
yuanhisn
·
2015-05-28 09:00
River
Crossing
---河南省第六届大学生程序设计竞赛
题目描述 Afandi is herding N sheep across the expanses of grassland when he finds himself blocked by a river. A single raft is available for transportation.Afandi knows that he must ride on the r
·
2015-05-05 19:00
程序设计
HDOJ 3232
Crossing
Rivers 简单概率
简单期望:船到岸边时间的期望是L/v再过河的时间是L/v所以过每条河的时间期望是2*L/vCrossingRiversTimeLimit:2000/1000MS(Java/Others) MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):699 AcceptedSubmission(s):361ProblemDescript
u012797220
·
2015-01-29 17:00
Codility - Earliest Time Frog
Crossing
River
Question: A small frog wants to get to the other side of a river. The frog is currently located at position 0, and wants to get to position X. Leaves fall from a tree onto the surface of the river. Y
yuanhsh
·
2015-01-08 11:00
time
Codility - Earliest Time Frog
Crossing
River
Question:Asmallfrogwantstogettotheothersideofariver.Thefrogiscurrentlylocatedatposition0,andwantstogettopositionX.Leavesfallfromatreeontothesurfaceoftheriver.Youaregivenanon-emptyzero-indexedarrayAcon
yuanhsh
·
2015-01-08 11:00
NYOJ - 716 - River
Crossing
--第六届河南省程序设计大赛 (简单DP!!)
RiverCrossing时间限制:1000 ms | 内存限制:65535 KB难度:4描述Afandiisherding N sheep acrosstheexpansesof grassland whenhefindshimselfblockedbyariver.Asingleraftisavailablefortransportation. Afandiknowsthathemustri
u014355480
·
2014-12-26 10:00
dp
ACM
河南省省赛
求数组的子数组之和的最大值
1.一维数组(1)分治(DivideandConquer,DC)#include #include usingnamespacestd; #definen7 voidfind_max_
crossing
_subarray
hz5034
·
2014-10-15 09:00
UVA - 12230
Crossing
Rivers (期望)
DescriptionYouliveinavillagebutworkinanothervillage.Youdecidedtofollowthestraightpathbetweenyourhouse(A)andtheworkingplace(B),butthereareseveralriversyouneedtocross.AssumeBistotherightofA,andalltheriv
u011345136
·
2014-09-03 10:00
uva 12230 -
Crossing
Rivers(求数学期望)
利用了数学期望的线性性质:有线个随机变量之和的数学期望的关于每个随机变量的期望之和;由于过每条河的时间为L/V和3L/V的均匀分布,因此期望过河时间为2L/V.#include #include #include usingnamespacestd; intn;doubled; intmain() { intkase=0; while(scanf("%d%lf",&n,&d)!=EOF) { k
u013382399
·
2014-08-14 10:00
数学
uva 12230 -
Crossing
Rivers(概率)
题目链接:uva12230-CrossingRivers题目大意:有个人每天要去公司上班,每次会经过N条河,家和公司的距离为D,默认在陆地的速度为1,给出N条河的信息,包括起始坐标p,宽度L,以及船的速度。船会往返在河的两岸,人到达河岸是,船的位置是随机的(包括方向)。问说人达到公司所需要的期望时间。解题思路:陆地上的时间是固定的,只需要分别计算过每条河的时间即可。因为人到岸边时,船的位置是随机的
u011328934
·
2014-08-11 21:00
poj 1700
Crossing
River C++/Java
http://poj.org/problem?id=1700题目大意:有n个人要过坐船过河,每个人划船有个时间a[i],每次最多两个人坐一条船过河,且过河时间为两个人中速度慢的,求n个人过河的最短时间。思路:贪心。对于每次过河的,有两种情况://最快和最慢过去,然后最快回来,在和次慢过去,最快回来 intaction1=a[i-1]+a[0]+a[i-2]+a[0]; //最快和次慢过去,然后最快
murmured
·
2014-07-10 11:00
java
编程
C++
ACM
poj
[ACM] poj 1700
Crossing
River (经典过河问题)
CrossingRiverTimeLimit:1000MS MemoryLimit:10000KTotalSubmissions:10212 Accepted:3855DescriptionAgroupofNpeoplewishestogoacrossariverwithonlyoneboat,whichcanatmostcarrytwopersons.Thereforesomesortofshu
sr19930829
·
2014-04-29 16:00
经典过河问题
NYOJ 716 River
Crossing
(动态规划)
RiverCrossing时间限制:1000 ms | 内存限制:65535 KB难度:4描述Afandiisherding N sheep acrosstheexpansesof grassland whenhefindshimselfblockedbyariver.Asingleraftisavailablefortransportation. Afandiknowsthathemustri
LYHVOYAGE
·
2014-04-11 21:00
动态规划
一个数据库语句
select tt.plate_info, tt.
crossing
_id, ttt.
crossing
_id as
crossing
_id2 , tt.pass_time
myq526180048
·
2014-04-04 11:00
数据库
hdu 3232
Crossing
Rivers (数学期望)
CrossingRivers TimeLimit:2000/1000MS(Java/Others) MemoryLimit:32768/32768K(Java/Others)ProblemDescriptionYouliveinavillagebutworkinanothervillage.Youdecide
LYHVOYAGE
·
2014-04-02 19:00
POJ1700:
Crossing
River
DescriptionAgroupofNpeoplewishestogoacrossariverwithonlyoneboat,whichcanatmostcarrytwopersons.Thereforesomesortofshuttlearrangementmustbearrangedinordertorowtheboatbackandforthsothatallpeoplemaycross.
libin56842
·
2013-11-24 16:00
poj
(Relax 贪心 1.3)POJ 1700
Crossing
River
/* *POJ_1700.cpp * *Createdon:2013年11月18日 *Author:Administrator */ #include #include #include #include usingnamespacestd; constintmaxn=1010; inta[maxn]; intdp[maxn]; boolcmp(inta,intb){ returna
caihongshijie6
·
2013-11-18 17:00
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