Roads

POJ - 1251（Jungle Roads）(最小生成树.krustal)

JungleRoads题目链接：http://poj.org/problem?id=1251题目：TimeLimit:1000MSMemoryLimit:10000KTotalSubmissions:31876Accepted:14909DescriptionTheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeigna
20172674·2020-08-02 22:25

ACM 最小生成树 Constructing Roads

最小生成树：一个有n个结点的连通图的生成树是原图的极小连通子图，且包含原图中的所有n个结点，并且有保持图连通的最少的边。最小生成树可以用kruskal（克鲁斯卡尔）算法或prim（普里姆）算法求出。在一给定的无向图G=(V,E)中，(u,v)代表连接顶点u与顶点v的边，而w(u,v)代表此边的权重，若存在T为E的子集且为无循环图，使得的w(T)最小，则此T为G的最小生成树。最小生成树其实是最小权重
TheWise_lzy·2020-08-02 22:04

POJ 2421 Constructing Roads

ConstructingRoadsTimeLimit:2000MSMemoryLimit:65536KTotalSubmissions:28406Accepted:12557DescriptionThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateverytwovillagescanconnec
~ 知至~·2020-08-02 22:31

POJ--1251 Jungle Roads

JungleRoadsTimeLimit:1000MSMemoryLimit:10000KTotalSubmissions:22617Accepted:10537DescriptionTheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvill
WzMOwO·2020-08-02 22:26

POJ1251Jungle Roads(最小生成树)

题目大意：首先给你一个图，需要你求出最小生成树，输入N个节点，用大写字母表示了节点，然后节点与节点之间有权值。比如有9个节点，然后接下来有n-1行表示了边的情况，拿第一行举例A2B12I25表示A有两个邻点，B和I，AB权值是12，AI权值是25邻接矩阵prime:#include#include#includeusingnamespacestd;constintmaxn=30;constinti
Rain722·2020-08-02 22:44

Jungle Roads解题分析（并查集，最小生成树，输入格式）

题目描述TheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,sothelargeroadnetworkistooexpens
MJ_go·2020-08-02 22:51

Jungle Roads POJ - 1251

TheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,sothelargeroadnetworkistooexpensivet
Fly++·2020-08-02 21:47

POJ2421 Constructing Roads

思路：被选定好一部分边的最小生成树，可用prim或kruskal解决，我用的是kruskal。对于已给定的边，先将它们连接的点并入一个集合（利用并查集）。在枚举边时，只有两个端点不在一个集合中的边可以被使用。在程序中：题目给出的是矩阵，但我将它用边表示，connect[]用来防止记录多余的边。sum记录总共有多少条边。程序如下：#include#include#includeusingnamesp
Little_Flower_0·2020-08-02 21:37

HDU - 1102 Constructing Roads (最小生成树)

ConstructingRoads原题链接：http://acm.hdu.edu.cn/showproblem.php?pid=1102ThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateverytwovillagescanconnecttoeachother.WesaytwovillageAa
J1nAB1n9·2020-08-02 21:30

hdu 1301 Jungle Roads

TheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,sothelargeroadnetworkistooexpensivet
俱往矣_wpt·2020-08-02 21:57

POJ - 1251 Jungle Roads（最小生成树 prim算法）

JungleRoadsTimeLimit:1000MSMemoryLimit:10000KTotalSubmissions:29260Accepted:13712DescriptionTheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvill
Lifca·2020-08-02 21:45

A - Jungle Roads POJ - 1251

A-JungleRoadsPOJ-1251TheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,sothelargeroadn
风中一颗松·2020-08-02 21:13

Jungle Roads 【poj-1251】 【最小生成树】

JungleRoadsTimeLimit:1000MSMemoryLimit:10000KTotalSubmissions:27354Accepted:12877DescriptionTheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvill
DNMTOOBA·2020-08-02 21:25

HDU 1102 Constructing Roads（prim最小生成树）

ConstructingRoadsTimeLimit:2000/1000MS(Java/Others)MemoryLimit:65536/32768K(Java/Others)TotalSubmission(s):26072AcceptedSubmission(s):9998ProblemDescriptionThereareNvillages,whicharenumberedfrom1toN,a
BBHHTT·2020-08-02 21:23

POJ - 2421 Constructing Roads【最小生成树】

题意：给你n个城市，然后给出每个城市的距离。再给你说已经有哪些城市已经连起来了。剩下问你联通的最小修路代价是多少。题解：最小生成树。把连好的城市距离改成0就行了。直接模板。#include#include#include#definelllonglongusingnamespacestd;constintmaxn=111;inta[maxn][maxn];intdis[maxn];intn,m,x
zoro_n·2020-08-02 21:30

Jungle Roads POJ - 1251（克鲁斯卡尔）

JungleRoadsPOJ-1251TheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,sothelargeroadnet
Learning_is_endless·2020-08-02 21:23

Constructing Roads POJ - 2421（克鲁斯卡尔）

ConstructingRoadsPOJ-2421ThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateverytwovillagescanconnecttoeachother.WesaytwovillageAandBareconnected,ifandonlyifthereisaroadbetw
Learning_is_endless·2020-08-02 21:51

Constructing Roads 【poj-2421】【最小生成树】

ConstructingRoadsTimeLimit:2000MSMemoryLimit:65536KTotalSubmissions:25040Accepted:10897DescriptionThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateverytwovillagescanconnec
yihanyifan·2020-08-02 21:14

POJ - 1251 - Jungle Roads

题目连接：http://poj.org/problem?id=1251题目描述DescriptionTheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroad
东さん·2020-08-02 21:35

POJ-2421 Constructing Roads

题目链接：https://vjudge.net/problem/POJ-2421最小生成树问题，先给出图的邻接矩阵，再给出已经两两相连的点，求最小生成树的花费把下三角矩阵的边加入边集，已经相连的点用并查集标记，再用Kruskal做就可以了#include#include#include#include#includeusingnamespacestd;constintMAXN=100+10;//点
_zlWang·2020-08-02 21:26

D - Constructing Roads POJ - 2421（最小生成树 kruskal）

D-ConstructingRoadsPOJ-2421（最小生成树kruskal）ThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateverytwovillagescanconnecttoeachother.WesaytwovillageAandBareconnected,ifandonlyif
才子词人自是白衣卿相·2020-08-02 21:14

A - Jungle Roads POJ - 1251（ 最小生成树 kruskal ）

A-JungleRoadsPOJ-1251（最小生成树kruskal）TheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,s
才子词人自是白衣卿相·2020-08-02 21:14

Constructing Roads POJ - 2421（最小生成树）

Kruskal算法#include#include#include#include#include#include#defineINF0x7f7f7f7fusingnamespacestd;constintmaxn=107;structEdge{intu,v,w;Edge(int_u=0,int_v=0,int_w=0):u(_u),v(_v),w(_w){}booloperatoredge;in
>>777>>豆芽·2020-08-02 21:13

POJ - 1251- Jungle Roads（最小生成树）

POJ-1251-JungleRoads题目链接：https://cn.vjudge.net/contest/238509#problem/JTheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butt
CNG Steve·Curcy·2020-08-02 21:02

Constructing Roads POJ - 2421 (最小生成树)

思路：首先使用二维数组dis[][]处理输入,对于已经修好的路，将其对应的dis[i][j]置为零即可。最后再将所有的dis[][]保存到边结构体中，使用Kruskal算法求得最小生成树。1#include2#include3#include4#include5#include6#include7#include8#include9#include1011usingnamespacestd;121
weixin_30699235·2020-08-02 21:07

poj-2421 Constructing Roads（最小生成树 Kruskal算法）

ConstructingRoadsTimeLimit:2000MSMemoryLimit:65536KBDescriptionThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateverytwovillagescanconnecttoeachother.WesaytwovillageAandBar
w-y-p·2020-08-02 21:48

poj-1251 Jungle Roads

题目链接：http://poj.org/problem?id=1251简单题#include#include#include#include#include#include#includeusingnamespacestd;#defineINF10000000intn,m;chara[5],b[5];intc,d;intmap[100][100],dis[100],v[100];intprim(i
mfcheer·2020-08-02 21:48

Constructing Roads POJ - 2421(最小生成树2)

有N个村庄，从1到N，你应该修建一些道路，这样每两个村庄就可以连接起来。我们说两个村庄A和B相连，当且仅当A和B之间有一条路，或者存在一个村庄C使得A和C之间有一条路，并且C和B相连。我们知道一些村庄之间已经有一些道路了，你的工作是修建一些道路，这样所有的村庄都连接起来，所有道路的长度都是最小的。Input第一行是整数N(3usingnamespacestd;constintmaxn=105;#i
Tsttkx·2020-08-02 20:27

【Jungle Roads】【POJ - 1251】

题目链接：http://poj.org/problem?id=1251绝对是一道超级经典的最小生成树题目，有好多种解法。解题思路：每次先找最小的边，取出看看将它放进去，是否有环生成，若没有，加入，反之，继续下一条比它稍微长点的边#include#include#include#include#include#include#include#include#definemaxn100usingnam
洋-葱·2020-08-02 20:19

Constructing Roads POJ - 2421

原oj网址点击打开链接vj网址点击打开链接这道题是一个不择不扣的送分题就是一个最小生成树大意就是输入m个数后面有m行n行代表1-mn需要通过的数字然后接下来几行代表一个双向图（这个很重要，我们队因为这个还wa了一发）可以直接来让他们等于0然后输出nn-mm的最小值这个就很简单了话不多说直接上代码#include#include#include#include#include#include#def
pipixia233333·2020-08-02 20:15

POJ-1251(Jungle Roads) Kruskal

POJ-1251#include#include#include#includeusingnamespacestd;constintMAXN=30;constintINF=0x3f3f3f3f;intf[MAXN];struct_Edge{intfrom,to,val;_Edge(){}_Edge(int_from,int_to,int_val):from(_from),to(_to),val(_
YancyKahn·2020-08-02 20:36

POJ-2421-Constructing Roads（最小生成树 普利姆）

D-ConstructingRoadsTimeLimit:2000MSMemoryLimit:65536KB64bitIOFormat:%I64d&%I64uSubmitStatusPracticePOJ2421DescriptionThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateveryt
Prim233·2020-08-02 20:24

poj2421Constructing Roads（最小生成树）

思路：一些已经连好的边添加一条权值为0的路，然后就是上模板了，又SB忘记init()#include#include#include#include#include#include#include#include#include#include#include#include#includeusingnamespacestd;#definemaxn1000#defineLLlonglongintc
围巾的ACM·2020-08-02 20:42

POJ - 1251----Jungle Roads(prim)

TheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,sothelargeroadnetworkistooexpensivet
莫宫天·2020-08-02 20:54

Constructing Roads POJ - 2421 prim算法

/**题意：有n个村子，他们现在需要修路，给出每两个村庄的距离，求连通村庄所需修路的最短长度，但是有些路已经是修好了，所以不需要重修，简单的说就是边值为0；这个也没什么，很简单；*/#include#include#includeusingnamespacestd;constintinf=0x3f3f3f3f;constintmaxn=1e2+7;intdis[maxn],mmp[maxn][ma
布呗之路·2020-08-02 20:17

POJ-2421 Constructing Roads (最小生成树)

ConstructingRoadsTimeLimit:2000MSMemoryLimit:65536KTotalSubmissions:25593Accepted:11207DescriptionThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateverytwovillagescanconnec
Borrrrrrrrrrrram·2020-08-02 20:11

POJ-2421（最小生成树模版）（Constructing Roads ）

intp[10001];intrank[10001];voidmake_set(intx){p[x]=x;rank[x]=0;}intfind_set(intx){if(x!=p[x])p[x]=find_set(p[x]);returnp[x];}voidlink(intx,inty){if(rank[x]>rank[y])p[y]=x;else{p[x]=y;if(rank[x]==rank[
famousDT·2020-08-02 20:55

POJ-1251-Jungle Roads

POJ-1251-JungleRoadshttp://poj.org/problem?id=1251最短路问题Kruskal算法和Prim算法都可以Kruskal#include#include#includestructcam{intx;inty;intlen;}list[1000];intf[1000];intn,t;intcmp(constvoid*a,constvoid*b){return
comeace·2020-08-02 20:17

POJ - 2421 Constructing Roads（最小生成树 prim算法）

ConstructingRoadsTimeLimit:2000MSMemoryLimit:65536KTotalSubmissions:25971Accepted:11367DescriptionThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateverytwovillagescanconnec
Lifca·2020-08-02 20:21

D - Constructing Roads POJ - 2421

D-ConstructingRoadsPOJ-2421题意：有一些村庄需要修一些道路是所有村庄都可以连接，不过有些道路已经修好了，问题最少还需要修建的道路长度是多少。输入的第一行是一个N代表N个村庄，下面是一个N*N的矩阵，代表着i->j的距离，然后输出一个Q,接着有Q行，表示AB已经修建的村庄思路：为了增加麻烦他们设定了一些已经修建的村庄，使用krusal做，把已经修建的边都连接上#includ
Doneone_·2020-08-02 20:50

Jungle Roads POJ - 1251

JungleRoadsTheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,sothelargeroadnetworkisto
DNMTOOBA·2020-08-02 20:49

Jungle Roads（POJ-1251）

POJ-1251传送门DescriptionTheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,sothelargeroad
CoderSilence·2020-08-02 20:39

Constructing Roads（POJ-2421）

POJ-2421传送门DescriptionThereareNvillages,whicharenumberedfrom1toN,andyoushouldbuildsomeroadssuchthateverytwovillagescanconnecttoeachother.WesaytwovillageAandBareconnected,ifandonlyifthereisaroadbetween
CoderSilence·2020-08-02 20:08

POJ-1251Jungle Roads(最小生成树prime)

TheHeadElderofthetropicalislandofLagrishanhasaproblem.Aburstofforeignaidmoneywasspentonextraroadsbetweenvillagessomeyearsago.Butthejungleovertakesroadsrelentlessly,sothelargeroadnetworkistooexpensivet
剑断青丝i·2020-08-02 19:21

有向图最短路径（LINGO实现）

model:sets:cities/A,B1,B2,C1,C2,C3,D/;roads(cities,cities)/AB1,AB2,B1C1,B1C2,B1C3,B2C1,B2C2,B2C3,C1D,
Ruanes·2020-08-02 17:03

go json数据格式化输出

packagemainimport("bytes""encoding/json""log""os")funcmain(){typeRoadstruct{NamestringNumberint}roads
hardecz·2020-07-30 09:44

Constructing Roads In JGShining's Kingdom（二分法维护单调上升序列）

ProblemATimeLimit:2000/1000ms(Java/Other)MemoryLimit:65536/32768K(Java/Other)TotalSubmission(s):56AcceptedSubmission(s):14ProblemDescriptionJGShining'skingdomconsistsof2n(nisnomorethan500,000)smallcit
sdau20163940·2020-07-30 09:19

HDU [ 拯救天使 ]——优先队列（结构体）+BFS

HewasputinprisonbyMoligpy.TheprisonisdescribedasaN*M(N,M<=200)matrix.ThereareWALLs,ROADs,andGUARDsintheprison.Angel'sfriendswanttosaveAngel.Th
_wjunjie·2020-07-29 23:12

POJ 1724 ROADS 最短路 邻接表 + bfs +优先队列

最近比较懒，一种方法A了以后不想再去学习别的方法，诶，需要调整本题：邻接表+bfs+优先队列３２ＭＳ还行ViewCode#include#include#includeusingnamespacestd;#defineINF100000000#definemaxn103#definemaxm10003structnode{intc,l,w;node(intcc,intll,intww):c(cc)
9974·2020-07-29 17:32

题解—Angel was caught by theMOLIGPY!

HewasputinprisonbyMoligpy.TheprisonisdescribedasaN*M(N,M<=200)matrix.ThereareWALLs,ROADs,andGUARDsintheprison.Angel'sfriendswanttosaveAngel.Theirtaskis
二喵君·2020-07-29 14:26
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