题目链接:http://poj.org/problem?id=2312 题目大意:给出一个n*m的矩阵,其中Y是起点,T是终点,B和E可以走,S和R不可以走,要注意的是走B需要2分钟,走E需要一分钟.最后求解Y--->T的最短时间!! 看到这题首先想到广搜来找最短时间,但是这里可以对B和E进行处理,方便计算~ #include <iostream> #include <cstdio> #include <queue> #include <cstring>…

  Battle City Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7579   Accepted: 2544 Description Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are…

Battle City Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are discussing is a simple edition of this game. Given a map that consists of empty spaces, rivers,…

题目连接 http://poj.org/problem?id=1840 Battle City Description Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are discussing is a simple edition of this game. Giv…

Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are discussing is a simple edition of this game. Given a map that consists of empty spaces, rivers, steel walls…

Battle City Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9885   Accepted: 3285 Description Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are d…

题目链接:http://poj.org/problem?id=2312 挺有趣的一道题目,然而很容易WA,我就WA了一次,虽然我Debug的时候已经知道哪里出问题了,就是比如说我搜到B和E时,从B搜第三个点,B左边的E就被搜了,step为3,然而其实他是step为2, 这里的处理方法很是巧妙,可以从B出发时,把B换成E,step+1,形成一个新的结点加入到队列中去. 之后,和杰哥交流了这下题,我对这个BFS又有了新的一点认识,BFS时,每次搜索的点,都要是同一级别的点,想这里B,和E就不是同一级…

题目:http://poj.org/problem?id=2049 题意: 有一个迷宫,在迷宫中有墙与门 有m道墙,每一道墙表示为(x,y,d,t)x,y表示墙的起始坐标d为0即向右t个单位,都是墙d为1即向上t个单位,都是墙有n道门,每一道门表示为(x,y,d)x,y表示门的起始坐标d为0即向右一个单位表示门d为1即向上一个单位表示门再给出你起点的位置(f1,f2),并保证这个点的位置不会再墙或者门中,为起点到(0,0)最少要穿过多少条门 代码是根据网上大神的稍微改了一下,就交了 #inclu…

题意:给你一个地图,’+’代表十字路口,‘-’‘|’表示街道,‘.’表示建筑物,‘s’,’E’ 起点和终点.输出从起点到终点的的 最短路径(包括方向和沿该方向的经过的十字路口数) 分析:ans[i][j],起点到(i,j)点的最短路径,bfs求出所有,再从终点回推到起点得最短路径. #include <map> #include <set> #include <list> #include <cmath> #include <queue> #in…

来源poj2312 Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are discussing is a simple edition of this game. Given a map that consists of empty spaces, rivers, st…