http://poj.org/problem?id=3013 Big Christmas Tree Time Limit: 3000MS Memory Limit: 131072K Total Submissions: 19009 Accepted: 4048 Description Christmas is coming to KCM city. Suby the loyal civilian in KCM city is preparing a big neat Christmas
一般的dijkstra算法利用贪心的思想,每次找出最短边,然后优化到其他点的的距离,我们还采用贪心思路,但在寻找最短边进行优化,之前是双重for循环,现在我们用优先队列来实现. 代码解释: //样例程序采用边表储存. #include<cstdio>#include<queue>#include<cstring>#include<cmath>#include<iostream> using namespace std; int head[1000
Problem Description 给定一个m × n (m行, n列)的迷宫,迷宫中有两个位置,gloria想从迷宫的一个位置走到另外一个位置,当然迷宫中有些地方是空地,gloria可以穿越,有些地方是障碍,她必须绕行,从迷宫的一个位置,只能走到与它相邻的4个位置中,当然在行走过程中,gloria不能走到迷宫外面去.令人头痛的是,gloria是个没什么方向感的人,因此,她在行走过程中,不能转太多弯了,否则她会晕倒的.我们假定给定的两个位置都是空地,初始时,gloria所面向的方向未定,她可
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=649 Rescue Time Limit: 2 Seconds Memory Limit: 65536 KB Angel was caught by the MOLIGPY! He was put in prison by Moligpy. The prison is described as a N * M (N, M <= 200) matrix. There a
Rescue Time Limit : 2000/1000ms (Java/Other) Memory Limit : 65536/32768K (Java/Other) Total Submission(s) : 14 Accepted Submission(s) : 7 Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description Angel was caught by the MOLIGPY