给定数组a[1,2,3],用a里面的元素来生成一个长度为5的数组,打印出其排列组合 ruby代码: def all_possible_arr arr, length = 5 ret = [] length.times do if ret.empty? ret = arr.map {|i| [i]} else new_ret = [] ret.each do |r| arr.each do |e| new_ret << r.clone.unshift(e) end end ret = new_r
You are given an integer array sorted in ascending order (may contain duplicates), you need to split them into several subsequences, where each subsequences consist of at least 3 consecutive integers. Return whether you can make such a split. Example
You are given an integer array sorted in ascending order (may contain duplicates), you need to split them into several subsequences, where each subsequences consist of at least 3 consecutive integers. Return whether you can make such a split. Example
C#获取二维数组组合 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace HF.SHOP.WebSite { public partial class Demo : System.Web.UI.Page { List