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POJ3352-Road Construction
Road Construction Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 8652   Accepted: 4323 Description It's almost summer time, and that means that it's almost ...
分类:其他好文   时间:2014-08-05 22:42:30    阅读次数:240
HDU 1596 find the safest road
最短路问题。Dijkstra,SPFA,Floyd 都可求。题意非常明了,求最安全的路,乘起来就好了。有个小优化就是SPFA 算过的起点就不再去算了。还有推断一下终点,開始没推断,WA了一发。#include#include#include#include#include#include#inclu...
分类:其他好文   时间:2014-08-04 14:04:07    阅读次数:175
UVA 1455 - Kingdom(线段树+并查集)
UVA 1455 - Kingdom 题目链接 题意:给定一些城市坐标点,连在一起的城市称为一个州,现在用两种操作,road表示把城市a,b建一条路,line表示询问一个y轴上穿过多少个州,和这些州共包含多少个城市 思路:利用并查集维护每个州的上界和下界还有城市个数,然后每次加进一条路的时候,根据两个集合的位置可以处理出区间的州和城市数如何进行加减,然后利用线段树搞就可以了...
分类:其他好文   时间:2014-08-03 15:19:55    阅读次数:296
hdu 1598 find the most comfortable road
贪心+并查集fighting~~~~~!! 1 #include 2 #include 3 #include 4 #include 5 using namespace std; 6 #define maxn 300 7 #define INF 0x3fffffff 8 int par[maxn]; ...
分类:其他好文   时间:2014-07-27 21:36:35    阅读次数:182
图论trainning-part-1 H. Qin Shi Huang's National Road System
H. Qin Shi Huang's National Road SystemTime Limit: 1000msMemory Limit: 32768KB64-bit integer IO format:%I64d Java class name:MainDuring the Warring St...
分类:其他好文   时间:2014-07-23 15:07:06    阅读次数:291
Where You Can Move Things Out Of The Bag
Chanel brand is taking the high road, stylish simplicity, simple and comfortable, pure style. "Fashion passes, style remains" still the guiding force ...
分类:其他好文   时间:2014-07-22 00:27:37    阅读次数:268
UVA - 1494 Qin Shi Huang's National Road System (类次小生成树)
Description During the Warring States Period of ancient China(476 BC to 221 BC), there were seven kingdoms in China -- they were Qi, Chu, Yan, Han, Zhao, Wei and Qin. Ying Zheng was the king of the...
分类:其他好文   时间:2014-07-21 23:27:49    阅读次数:437
杭电1596 find the safest road
find the safest road Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 6380    Accepted Submission(s): 2271 Problem Description XX星球有很多城...
分类:其他好文   时间:2014-07-20 22:18:33    阅读次数:232
C++中如何split字符串(转)
#include #include #include using namespace std;int main(){ string s("Somewhere down the road"); istringstream iss(s); while (iss) ...
分类:编程语言   时间:2014-07-19 23:13:54    阅读次数:248
HDU 1596 find the safest road
最短路问题。 Dijkstra,SPFA,Floyd 都可求。题意很明了,求最安全的路,乘起来就好了。 有个小优化就是SPFA 算过的起点就不再去算了。 还有判断一下终点,开始没判断,WA了一发。 #include #include #include #include #include #include #include #include #include #inc...
分类:其他好文   时间:2014-07-19 02:45:06    阅读次数:183
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