palindromic numbers list

A variable parameter list is required for the maximum value in the multiple number:The code is as follows:Operation Result:The maximum value in the "C language" for multiple numbers (variable parameter list)

List all the combinations of numbers in an array, such as 1 and 2, listed as 12,21 ? Code The idea is to fix the prefix prefix, and then there's the remaining candidate candidate. Select some of the candidates and add them back to the prefix.For example, fix prefix 1, then add 2, then select 3 from the following 34, then 4. Get 1234. Or choose 4 from the back 34, then 3. Get 1243. static void Listall (

#-*-Coding:utf-8-*-# python:2.x__author__ = ' Administrator '#学习这个要求的: http://wsky.org/archives/162.htmlImport SysFrom itertools Import *From operator Import *Def parse (f):d={}For line in open (F, ' R '):_line=line.split ()D.setdefault (_line[0],[]). Append (_line[1])For key in D.keys ():data=sorted (Map (Lambda X:int (x[1:]), D[key]))Sys.stdout.write (key+ ")For K,g in GroupBy (Enumerate (data), Lambda (i,x): i-x):Ret=map (Itemgetter (1), g)If Len (ret) >1:Sys.stdout.write (' s%d-%d '% (Ret[0]