Givenatree,youaresupposedtolistalltheleavesintheorderoftopdown,andlefttoright.InputSpecification:Eachinputfilecontainsonetestcase.Foreachcase,thefirstlinegivesa...

ZhejiangUniversityhas40000studentsandprovides2500courses.Nowgiventheregisteredcourselistofeachstudent,youaresupposedtooutputthestudentnamelistsofallthecourses.I...

ZhejiangUniversityhas40000studentsandprovides2500courses.Nowgiventhestudentnamelistsofallthecourses,youaresupposedtooutputtheregisteredcourselistforeachstudentw...

GivenalistofNstudentrecordswithname,IDandgrade.Youaresupposedtosorttherecordswithrespecttothegradeinnon-increasingorder,andoutputthosestudentrecordsofwhichthegr...

Excelcansortrecordsaccordingtoanycolumn.Nowyouaresupposedtoimitatethisfunction.InputEachinputfilecontainsonetestcase.Foreachcase,thefirstlinecontainstwointegers...

GivenasinglylinkedlistLwithintegerkeys,youaresupposedtoremovethenodeswithduplicatedabsolutevaluesofthekeys.Thatis,foreachvalueK,onlythefirstnodeofwhichthevalueo...

Alinkedlistconsistsofaseriesofstructures,whicharenotnecessarilyadjacentinmemory.Weassumethateachstructurecontainsanintegerkeyanda Next pointertothenex...

GivenaconstantKandasinglylinkedlistL,youaresupposedtoreversethelinksofeveryKelementsonL.Forexample,givenLbeing1→2→3→4→5→6,ifK=3,thenyou...

尊重原文作者，该文转载于： http://www.yihaomen.com/article/python/533.htm 在用python或者django写一些小工具应用的时候，有可能会遇到合并多个list到一个list的情况。单纯从技术角度来说，处理起来没什么难度，能想到的办法很多，但我觉得有一个...

1.能用set不用list~$python-mtimeit-n1000"[xforxinrange(1000)ifxinrange(500,1500)]"1000loops,bestof3:28.2msecperloop~$python-mtimeit-n1000"set(range(1000)).intersecti...

publicvoidtest(){List<User>list=newArrayList<>();//User实体测试用Stringid,name;//当前测试以id来分组，具体请按开发场景修改list.add(newUser("1","1"));list.add(newUser("1","2"...

话说Dictionary的效率比List的高？为什么高呢？这个大家可以百度下。当然，我也并不是完全认同。然后后了测试，反正结果是……其实在很多情况下是根据不同的使用环境来选择使用。例如：List<int>和Dictionary<int,int>就拿这两个的添加和数据遍...

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;namespaceList{classProgram{staticvoidMain(string[]args...

　　　　　　　ListViewItemsss=newListViewItem(txtLabel.Text.Trim());if(listView1.Items.Contains(sss))//发现始终都是false{MessageBox.Show("内容重复！","提示",MessageBoxButtons.OK,Me...

接着之前的react-redux完善ToDoList案例，实现点击按钮，添加列表项功能（1）添加按钮响应事件　　 （2）编写映射关系 　　   （3）编写reducer.js进行state的业务逻辑处理　　　　测试如下，此时便完成了列表数据的添加操作　　 &n...