Monte Carlo simulation.估计percolation的阈值,初始化时候格子都是关闭的,随机寻找一个关闭的位置打开,直到系统可以渗透为止,打开的格子比上总格子数就是阈值。 这一部分就是一些数值计算比较简单,不赘述了。 publicclassPercolationStats {privatedouble[] x;privateintexpTimes;public
It is only a minor deduction (because it impacts only the visualizer and not the experiment to estimate the percolation threshold), so don't go crazy trying to get this detail. However, many students consider this to be the most challenging and creative part of the assignment (especially if ...
Coursera Algorithms Programming Assignment 1: Percolation 题目来源http://coursera.cs.princeton.edu/algs4/assignments/percolation.html 作业分为两部分:建立模型和仿真实验。 最关键的部分就是建立模型对象。模型对象要求如下: The model. We model a percolation system using an n-by-n grid of&nbs......
publicbooleanpercolates(){returnuf1.connected(0,(n+1)*(n+1));}// test client PercolationStats.java import edu.princeton.cs.algs4.StdOut;import edu.princeton.cs.algs4.StdRandom;import edu.princeton.cs.algs4.StdStats;publicclassPercolationStats{//trial timesprivateinttrialNum;//threshold Ppri...
Volume assignment Program libraries Using different serialization techniques for the same volume Finding the UCB address for the RESERVE macro Using the GETDSAB macro to find the UCB address Procedures Using the IEFDDSRV macro to find the UCB address Procedures Using the EXTRACT macro to...
Question: I'm trying to complete the first assignment of the Coursera course Algorithms, : package edu.princeton.cs.algs4 does not exist import edu.princeton.cs.algs4.In;, ^ PercolationTest.java:4: error: package edu.princeton.cs.algs4 does not exist import edu.princeton.cs.algs4, Que...
1. 使用2个WQUUF, 但会增加memory. One for checking if the system percolates(include virtual top and bottom), and the other to check if a given cell is full(only include virtual top). 而且要注意,判断site 是否open只能用boolean ,不然memory 就会超出限制。记住:选择合适的data structure 很重要!
The model.We model a percolation system using an n-by-n grid of sites. Each site is either open or blocked. A full site is an open site that can be connected to an open site in the top row via a chain of neighboring (left, right, up, down) open sites. We say the system perco...
1. 不使用虚拟底层区域,只保留顶层,判断是否渗透的时候用虚拟顶层和一个for循环来判断。 2. 保留虚拟底层区域,另外加一个不使用虚拟底层的模型,将两个模型结合在一起来判断是否渗透,通过浪费一些内存来保证效率。 backwash的情况导致Percolation.java在测试时public void isfull(int i, int j) 方法出现错误,这一点...
*/ public class PercolationStats { private int T; //T independent experiments private double[] fraction; public PercolationStats(int N, int T) { // perform T independent experiments on an N-by-N grid if (N <= 0 || T <= 0) { throw new IllegalArgumentException("N and T must be ...