Given a list of non-overlapping axis-aligned rectangles rects, write a function pick which randomly and uniformily picks an integer point ...
Given the radius and x y positions of the center of a circle, write a functionrandPointwhichgenerates a uniform randompoint in the circle. Note: input and output values areinfloating point. radius an ...
2018-10-03 23:09 6 2310 推荐指数:
Given a list of non-overlapping axis-aligned rectangles rects, write a function pick which randomly and uniformily picks an integer point ...
算法 1 设半径为$R$。 $x = r \ast cos(\theta)$ $y = r \ast sin(\theta)$ 其中 $0\leqslant r \leqslant R$,$t$为0-1均匀分布产生的随机数,$r = sqrt(t) \ast R$,$\theta ...
Given an array w of positive integers, where w[i] describes the weight of index i, write a functi ...
前言 最近遇到一个问题,需要在以一个坐标为中心的区域内生成一组均匀分布的随机点,首先想到的就是以圆作为区域。 圆内随机点 方法1: 根据\(x^{2}+y^{2}=R^{2}\),那么自让想到可以先随机生成[-R,R]间的横坐标x,然后生成[\(-\sqrt{R^{2}-X ...
代码在每一章节最后 一、均匀生成圆内的随机点 我们知道生成矩形内的随机点比较容易,只要分别随机生成相应的横坐标和纵坐标,比如随机生成范围[-10,10]内横坐标x,随机生成范围[-20,20]内的纵坐标y,那么(x,y)就是生成的随机点。由此,我们很容易的想到了算法1 算法 ...
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: "((()))", "(()())", "(())()", "()(())", "()()()" ...