Descending Order
Description:
Your task is to make a function that can take any non-negative integer as a argument and return it with it‘s digits in descending order. Descending order means that you take the highest digit and place the next highest digit immediately after it.
Examples:
Input: 145263
Output: 654321
Input: 1254859723
Output: 9875543221
using System; using System.Linq; public static class Kata { public static int DescendingOrder(int num) { // Bust a move right here return Convert.ToInt32(string.Join(string.Empty, num.ToString().OrderBy(c => c).Reverse())); } }
其他人的解法:值得学习的是,str本身自带了降序排列的函数
关于string.Join以及string.Concat的区别http://www.cnblogs.com/chucklu/p/4621996.html
using System; using System.Linq; public static class Kata { public static int DescendingOrder(int num) { return int.Parse(string.Concat(num.ToString().OrderByDescending(x => x))); } }
时间: 2024-10-08 17:22:57