HDU 2962 Trucking

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hdu 2962 Trucking (二分+最短路Spfa)

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2962 Trucking Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1763 Accepted Submission(s): 618 Problem Description A certain local trucking co…

hdu 2962 Trucking (最短路径)

Trucking Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1692 Accepted Submission(s): 587 Problem Description A certain local trucking company would like to transport some goods on a cargo…

HDU - 2962 Trucking SPFA+二分

Trucking A certain local trucking company would like to transport some goods on a cargo truck from one place to another. It is desirable to transport as much goods as possible each trip. Unfortunately, one cannot always use the roads in the shortest…

题目大意:给定无向图,每一条路上都有限重,求能到达目的地的最大限重,同时算出其最短路. 题解:由于有限重,所以二分检索,将二分的值代入最短路中,不断保存和更新即可. #include <cstdio> #include <cstring> #include <utility> #include <queue> using namespace std; const int N=20005; const int INF=9999999; typedef pair…

Trucking（HDU 2962 最短路+二分搜索）

Trucking Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2216 Accepted Submission(s): 757 Problem Description A certain local trucking company would like to transport some goods on a cargo…

Day4 - I - Trucking HDU - 2962

A certain local trucking company would like to transport some goods on a cargo truck from one place to another. It is desirable to transport as much goods as possible each trip. Unfortunately, one cannot always use the roads in the shortest route: so…

UVALive 4223 / HDU 2962 spfa + 二分

Trucking Problem Description A certain local trucking company would like to transport some goods on a cargo truck from one place to another. It is desirable to transport as much goods as possible each trip. Unfortunately, one cannot always use the ro…

hdu 2962 最短路+二分

题意:最短路上有一条高度限制,给起点和最大高度,求满足高度最大情况下,最短路的距离不明白为什么枚举所有高度就不对 #include<cstdio> #include<cstring> #include<algorithm> ; ][][],dist[],H[]; using namespace std; int n,line; int i,j,k; int st,ed,mid; ; ]; ]; bool dijkstra() { ]; ;i<=n;i++) {…

hdu 2962 题解

题目题意给出一张图,每条道路有限高,给出车子的起点,终点,最高高度,问在保证高度尽可能高的情况下的最短路,如果不存在输出 $ cannot reach destination $ 跟前面 $ hdu5418 $ 一样的,题目挺基础的,但是在细节方面比较抠.要是最高度尽可能高,我们就可以想去枚举可能的高度去跑 $ spfa $ ,但我们可以发现这样效率太低了,那么我们为什么不二分答案呢?给出最高高度了,最低不就是 $ 0 $ 吗?二分答案再去跑 $ spfa $ 加上限制条件. 这题时限…

HDU题解索引

HDU 1000 A + B Problem I/O HDU 1001 Sum Problem 数学 HDU 1002 A + B Problem II 高精度加法 HDU 1003 Maxsum 贪心 HDU 1004 Let the Balloon Rise 字典树,map HDU 1005 Number Sequence 求数列循环节 HDU 1007 Quoit Design 最近点对 HDU 1008 Elevator 模拟 HDU 1010 Tempter of th…

【转载】图论 500题——主要为hdu/poj/zoj

转自——http://blog.csdn.net/qwe20060514/article/details/8112550 =============================以下是最小生成树+并查集======================================[HDU]1213 How Many Tables 基础并查集★1272 小希的迷宫基础并查集★1325&&poj1308 Is It A Tree? 基础并查集★1856 More i…

UVALive - 4223(hdu 2926)

---恢复内容开始--- 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2962 Trucking Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 11428 Accepted Submission(s): 1104 Problem Description A certain lo…

hdu图论题目分类

=============================以下是最小生成树+并查集====================================== [HDU] 1213 How Many Tables 基础并查集★ 1272 小希的迷宫基础并查集★ 1325&&poj1308 Is It A Tree? 基础并查集★ 1856 More is better 基础并查集★ 1102 Constructing Roads 基础最小生成树★ 1232 畅通工程基础并查集★ 123…

HDU图论题单

=============================以下是最小生成树+并查集====================================== [HDU] 1213 How Many Tables 基础并查集★ 1272 小希的迷宫基础并查集★ 1325&&poj1308 Is It A Tree? 基础并查集★ 1856 More is better 基础并查集★ 1102 Constructing Roads 基础最小生成树★ 1232 畅通工程基础并查集★ 123…

【转】最短路&差分约束题集

转自:http://blog.csdn.net/shahdza/article/details/7779273 最短路 [HDU] 1548 A strange lift基础最短路(或bfs)★2544 最短路基础最短路★3790 最短路径问题基础最短路★2066 一个人的旅行基础最短路(多源多汇,可以建立超级源点和终点)★2112 HDU Today基础最短路★1874 畅通工程续基础最短路★1217 Arbitrage 货币交换 Floyd (或者 Bellman-Ford 判环)★124…

转载 - 最短路&差分约束题集

出处:http://blog.csdn.net/shahdza/article/details/7779273 最短路 [HDU] 1548 A strange lift基础最短路(或bfs)★ 2544 最短路基础最短路★ 3790 最短路径问题基础最短路★ 2066 一个人的旅行基础最短路(多源多汇,可以建立超级源点和终点)★ 2112 HDU Today基础最短路★ 1874 畅通工程续基础最短路★ 1217 Arbitrage 货币交换…

最短路&查分约束

[HDU] 1548 A strange lift 根蒂根基最短路(或bfs)★ 2544 最短路根蒂根基最短路★ 3790 最短路径题目根蒂根基最短路★ 2066 一小我的观光根蒂根基最短路(多源多汇,可以建树超等源点和终点)★ 2112 HDU Today 根蒂根基最短路★ 1874 通顺工程续根蒂根基最短路★ 1217 Arbitrage 货币互换 Floyd (或者 Bellman-Ford 判环)★ 1245 Saving James Bond 策画几何+最短路★ 1317…

hdu 1598 find the most comfortable road (并查集)

find the most comfortable road Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3240 Accepted Submission(s): 1373 Problem Description XX星有许多城市,城市之间通过一种奇怪的高速公路SARS(Super Air Roam Structure---超级…

HDOJ 2111. Saving HDU 贪心结构体排序

Saving HDU Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 7194 Accepted Submission(s): 3345 Problem Description 话说上回讲到海东集团面临内外交困,公司的元老也只剩下XHD夫妇二人了.显然,作为多年拼搏的商人,XHD不会坐以待毙的. 一天,当他正在苦思冥想解困良策的…

【HDU 3037】Saving Beans Lucas定理模板

http://acm.hdu.edu.cn/showproblem.php?pid=3037 Lucas定理模板. 现在才写,noip滚粗前兆QAQ #include<cstdio> #include<cstring> #include<algorithm> using namespace std; typedef long long ll; int jc[100003]; int p; int ipow(int x, int b) { ll t = 1, w = x;…

hdu 4859 海岸线 Bestcoder Round 1

http://acm.hdu.edu.cn/showproblem.php?pid=4859 题目大意: 在一个矩形周围都是海,这个矩形中有陆地,深海和浅海.浅海是可以填成陆地的. 求最多有多少条方格线满足两侧分别是海洋和陆地这道题很神首先考虑一下,什么情况下能够对答案做出贡献就是相邻的两块不一样的时候这样我们可以建立最小割模型,可是都说是最小割了无法求出最大的不相同的东西所以我们考虑转化,用总的配对数目 - 最小的相同的对数至于最小的相同的对数怎么算呢? 我们考虑这样的构造方法:…

HDU 4569 Special equations(取模)

Special equations Time Limit:1000MS Memory Limit:32768KB 64bit IO Format:%I64d & %I64u Submit Status Practice HDU 4569 Description Let f(x) = a nx n +...+ a 1x +a 0, in which a i (0 <= i <= n) are all known integers. We call f(x) 0 (mod…

HDU 4006The kth great number(K大数 +小顶堆)

The kth great number Time Limit:1000MS Memory Limit:65768KB 64bit IO Format:%I64d & %I64u Submit Status Practice HDU 4006 Description Xiao Ming and Xiao Bao are playing a simple Numbers game. In a round Xiao Ming can choose to write down a nu…

HDU 1796How many integers can you find（容斥原理）

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hdu 4481 Time travel(高斯求期望)(转)

(转)http://blog.csdn.net/u013081425/article/details/39240021 http://acm.hdu.edu.cn/showproblem.php?pid=4418 读了一遍题后大体明白意思,但有些细节不太确定.就是当它处在i点处,它有1~m步可以走,但他走的方向不确定呢.后来想想这个方向是确定的,就是他走到i点的方向,它会继续朝着这个方向走,直到转向回头. 首先要解决的一个问题是处在i点处,它下一步该到哪个点.为了解决方向不确定的问题,将n个点转…

HDU 3791二叉搜索树解题(解题报告)

1.题目地址: http://acm.hdu.edu.cn/showproblem.php?pid=3791 2.参考解题 http://blog.csdn.net/u013447865/article/details/22569639 这个题目本身简单,我的想法也很easy,但是发生在测试上,我把memset的参数搞错了,第三个是sizeof(a), 比如说int a[10],第三个参数应该是sizeof(10),也就是40,而我传的是10,导致后面的测试,都是答案错误,也就是后面的数据,初始…