Array.sort(); sort()方法可以传入一个函数作为参数,然后依据该函数的逻辑,进行数组的排序. 一般用法:(数组元素从小大进行排序) var a = [9, 6, 5, 7, 11, 52, 15]; a.sort(function(return a-b;)); sort()方法,接收了一个函数作为参数时,排序主要根据传入函数的返回值是否大于0进行排序. 1)当 a - b < 0 时, 则 a 元素排在 b 元素的前面. 2) 当 a - b = 0 时, a , b 元素的位
约瑟夫环问题说的是,n个人围成一圈,从第k个人开始沿着一个方向报数,报到第m个人时,第m个人出列,从紧挨着的下一个人(未出列)开始,求整个环中人的出列顺序.下面是我用java实现的解决方法. class JosephLoop { //n为环中人数,m为每次报数的人数,k为报数的起始位置0~n-1 int n,m,k; int[] persons; int[] seq; JosephLoop(int n, int k, int m){ this.n = n; this.m = m; this.k
A Simple Problem with Integers Time Limit: 5000MS Memory Limit: 131072K Total Submissions: 69589 Accepted: 21437 Case Time Limit: 2000MS Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of
Ping pong Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 2691 Accepted: 996 Description N(3<=N<=20000) ping pong players live along a west-east street(consider the street as a line segment). Each player has a unique skill rank. To im