题目链接-> 题解: 次短路模板. 代码: #include<cstdio> #include<iostream> using namespace std; #define inf 1e9 #define N 100005 #define S1 dis[x]+e[i].v #define S2 sdis[x]+e[i].v using namespace std; struct node { int to,next,v; } e[N<<]; int head[N]…

K短路/A* 经(luo)典(ti) K短路题目= = K短路学习:http://www.cnblogs.com/Hilda/p/3226692.html 流程: 先把所有边逆向,做一遍dijkstra,得到估价函数h(x)(x到T的最短路距离) f(x)=g(x)+h(x) 按f(x)维护一个堆……T第k次出堆时的g(T)即为ans 另外,需要特判:如果S==T,k++ Source Code Problem: User: sdfzyhy Memory: 11260K Time: 141MS…

http://poj.org/problem?id=2449 Remmarguts' Date Time Limit: 4000MS   Memory Limit: 65536K Total Submissions: 18168   Accepted: 4984 Description "Good man never makes girls wait or breaks an appointment!" said the mandarin duck father. Softly tou…

Remmarguts' Date http://poj.org/problem?id=2449 Time Limit: 4000MS   Memory Limit: 65536K Total Submissions: 30772   Accepted: 8397 Description "Good man never makes girls wait or breaks an appointment!" said the mandarin duck father. Softly tou…

Remmarguts' Date Time Limit: 4000MS   Memory Limit: 65536K Total Submissions: 25216   Accepted: 6882 Description "Good man never makes girls wait or breaks an appointment!" said the mandarin duck father. Softly touching his little ducks' head, h…

Remmarguts' Date Time Limit: 4000MS   Memory Limit: 65536K Total Submissions: 33606   Accepted: 9116 Description "Good man never makes girls wait or breaks an appointment!" said the mandarin duck father. Softly touching his little ducks' head, h…

Remmarguts' Date Time Limit: 4000MS   Memory Limit: 65536K Total Submissions:35025   Accepted: 9467 Description "Good man never makes girls wait or breaks an appointment!" said the mandarin duck father. Softly touching his little ducks' head, he…

Remmarguts' Date Time Limit: 4000MS   Memory Limit: 65536K Total Submissions: 29625   Accepted: 8034 Description "Good man never makes girls wait or breaks an appointment!" said the mandarin duck father. Softly touching his little ducks' head, h…

转载请注明出处: http://www.cnblogs.com/fraud/          ——by fraud Remmarguts' Date Time Limit: 4000MS   Memory Limit: 65536K Total Submissions: 21855   Accepted: 5958 Description "Good man never makes girls wait or breaks an appointment!" said the mand…

Remmarguts' Date Time Limit: 4000MS Memory Limit: 65536K Total Submissions: 33081 Accepted: 8993 Description "Good man never makes girls wait or breaks an appointment!" said the mandarin duck father. Softly touching his little ducks' head, he to…