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78. Subsets While iterating through all numbers, for each new number, we can either pick it or not pick it1, if pick, just add current number to every existing subset.2, if not pick, just leave all existing subsets as they are.We just combine both in…
典型的倒水问题: 即把两个水杯的每种状态视为bfs图中的点,如果两种状态可以转化,即可认为二者之间可以连一条边. 有3种倒水的方法,对应2个杯子,共有6种可能的状态转移方式.即相当于图中想走的方法有6种,依次枚举即可. 用一个二维数组标记状态,以免重复. 难点在于输出路径,即bfs回溯. 我的处理方法是,在bfs的队列基础上,用一个vector保存每一个可能的状态,即每个状态对应一个编号.同时结构体中不仅保存每个状态的信息,而且还要保存每个状态的对应编号和上一个状态的对应编号. 那么,当bfs到…
Pots Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9963   Accepted: 4179   Special Judge Description You are given two pots, having the volume of A and B liters respectively. The following operations can be performed: FILL(i)        fi…
Nightmare Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11273    Accepted Submission(s): 5493 Problem Description Ignatius had a nightmare last night. He found himself in a labyrinth with a ti…
Pots Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 11705   Accepted: 4956   Special Judge Description You are given two pots, having the volume of A and B liters respectively. The following operations can be performed: FILL(i)        f…
迷宫问题 Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 14568   Accepted: 8711 Description 定义一个二维数组: int maze[5][5] = { 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, }; 它表示一个迷宫,其中的1表示墙壁,0表示可以走的路,只能横着走或竖着走,不能斜着走,…
In the big cities, the subway systems always look so complex to the visitors. To give you some sense, the following figure shows the map of Beijing subway. Now you are supposed to help people with your computer skills! Given the starting position of…
题目地址:http://poj.org/problem?id=3414 Pots Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 12080   Accepted: 5104   Special Judge Description You are given two pots, having the volume of A and B liters respectively. The following operation…
package myalgorithm; import java.util.Arrays; import java.util.LinkedList; import java.util.Queue; /*BFS用于记录的位置和值的结构*/ class node { node(int xparam,int yparam,int valparam) { this.x = xparam; this.y = yparam; this.value = valparam; } int x,y,value; }…
最少步数 时间限制:3000 ms  |  内存限制:65535 KB 难度:4   描述 这有一个迷宫,有0~8行和0~8列: 1,1,1,1,1,1,1,1,1 1,0,0,1,0,0,1,0,1 1,0,0,1,1,0,0,0,1 1,0,1,0,1,1,0,1,1 1,0,0,0,0,1,0,0,1 1,1,0,1,0,1,0,0,1 1,1,0,1,0,1,0,0,1 1,1,0,1,0,0,0,0,1 1,1,1,1,1,1,1,1,1 0表示道路,1表示墙. 现在输入一个道路的坐标…