题意:给出n个点,m条正权的边,w条负权的边,问是否存在负环因为Bellman_ford最多松弛n-1次, 因为从起点1终点n最多经过n-2个点,即最多松弛n-1次,如果第n次松弛还能成功的话,则说明存在有负环 1 #include 2 #include 3 #include 4 #inc...
分类:
其他好文 时间:
2015-04-10 11:00:10
阅读次数:
145
Description While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a o...
分类:
其他好文 时间:
2015-03-15 00:42:32
阅读次数:
205
DescriptionWhile exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-way path that delivers you to its destination at a t...
分类:
其他好文 时间:
2015-03-11 09:19:38
阅读次数:
129
wormhole解题报告—— icedream61 博客园(转载请注明出处)-----------------------------------------------------------------------------------------------------------...
分类:
其他好文 时间:
2015-03-09 14:07:58
阅读次数:
133
DescriptionWhile exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-w...
分类:
其他好文 时间:
2015-03-05 20:58:45
阅读次数:
151
WormholesTime Limit:2000MSMemory Limit:65536KTotal Submissions:33008Accepted:12011DescriptionWhile exploring his many farms, Farmer John has discovere...
分类:
其他好文 时间:
2015-03-02 11:03:12
阅读次数:
159
Wormholes
Description
While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-way path that delivers you to it...
分类:
其他好文 时间:
2015-02-13 11:41:25
阅读次数:
145
F - Wormholes
Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d
& %I64u
SubmitStatus
Description
While exploring his many farms, Farmer John has discovered a number of...
分类:
其他好文 时间:
2015-02-11 14:43:04
阅读次数:
260
描述农夫约翰爱好在周末进行高能物理实验的结果却适得其反,导致N个虫洞在农场上(2 B . 贝茜会穿过B,A,+ . . . . 然后再次穿过B农夫约翰知道他的农场里每个虫洞的确切位置。他知道贝茜总是向 +x 方向走进来,虽然他不记得贝茜的当前位置。请帮助农夫约翰计算不同的虫洞配对...
分类:
其他好文 时间:
2015-01-27 21:31:15
阅读次数:
216
/**POJ 3259 Wormholes*判断负权值回路*/#include #include #include using namespace std;#define INF 10000000#define MAXN 600struct ArcNode { int to; int weight;...
分类:
其他好文 时间:
2015-01-25 16:27:46
阅读次数:
143