虽然它出现在dp专场里···但是我第一反应是一道最短路题···不过幸好它出现在dp专场里···因为我不怎么会dijstra什么的··· 题意:一条河上有N+1对码头,每个相邻码头之间需要一定时间到达,每对码头之间也需要一定时间到达,如下图: 给出起点码头和终点码头,问最短到达时间. 解法:假设起点码头一定在左边,终点码头一定在右边,那么为了时间最短一定是向右或向上(下)走,所以dp数组为每个从起点出发到每个码头时的最短耗时,dp方程很好确定,但是上下码头的顺序无法确定,而当路径是由对面码头过来的…

Ferry Loading Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 1807   Accepted: 509   Special Judge Description Before bridges were common, ferries were used to transport cars across rivers. River ferries, unlike their larger cousins, run…

双塔DP+输出路径. 由于内存限制,DP只能开滚动数组来记录. 我的写法比较渣,但是POJ能AC,但是ZOJ依旧MLE,更加奇怪的是Uva上无论怎么改都是WA,其他人POJ过的交到Uva也是WA. #include<cstdio> #include<cstring> #include<cmath> #include<stack> #include<algorithm> using namespace std; ][+]; struct P { i…

Ferry Loading II Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 3704   Accepted: 1884 Description Before bridges were common, ferries were used to transport cars across rivers. River ferries, unlike their larger cousins, run on a guide…

我仅仅是贴一下手写堆优化的dij模板.尽管.它.TLE了--**** #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> #define N 2001000 #define inf 0x3f3f3f3f #define longlong int using namespace std; struct Katarina { int v,next; longl…

Description Each of the M lanes of the Park of Polytechnic University of Bucharest connects two of the N crossroads of the park (labeled from 1 to N). There is no pair of crossroads connected by more than one lane and it is possible to pass from each…

此文转载别人,希望自己能够做完这些题目! 1.POJ动态规划题目列表 容易:1018, 1050, 1083, 1088, 1125, 1143, 1157, 1163, 1178, 1179, 1189, 1208, 1276,1322, 1414, 1456, 1458, 1609, 1644, 1664, 1690, 1699, 1740(博弈),1742, 1887, 1926(马尔科夫矩阵,求平衡), 1936, 1952, 1953, 1958, 1959, 1962, 1975,…

[1]POJ 动态规划题目列表 容易: 1018, 1050, 1083, 1088, 1125, 1143, 1157, 1163, 1178, 1179, 1189, 1208, 1276, 1322, 1414, 1456, 1458, 1609, 1644, 1664, 1690, 1699, 1740(博弈), 1742, 1887,1926(马尔科夫矩阵,求平衡), 1936, 1952, 1953, 1958, 1959, 1962, 1975, 1989, 2018, 2029,…

]POJ 动态规划题目列表 容易: 1018, 1050, 1083, 1088, 1125, 1143, 1157, 1163, 1178, 1179, 1189, 1208, 1276, 1322, 1414, 1456, 1458, 1609, 1644, 1664, 1690, 1699, 1740(博弈), 1742, 1887, 1926(马尔科夫矩阵,求平 衡), 1936,1952, 1953, 1958, 1959, 1962, 1975, 1989, 2018, 2029,2…

此文转载别人,希望自己可以做完这些题目. 1.POJ动态规划题目列表 easy:1018, 1050, 1083, 1088, 1125, 1143, 1157, 1163, 1178, 1179, 1189, 1208, 1276,1322, 1414, 1456, 1458, 1609, 1644, 1664, 1690, 1699, 1740(博弈),1742, 1887, 1926(马尔科夫矩阵,求平衡), 1936, 1952, 1953, 1958, 1959, 1962, 1975…