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ZOJisanonlinejudgesystemmaintainedbyZhejiangUniversityACM/ICPCTeam.Itallowspeopletosolvealgorithmproblemsonline.
LintCode 炼码 - ChatGPT!更高效的学习体验!
Powerfulcodingtrainingsystem.LintCodehasthemostinterviewproblemscoveringGoogle,Facebook,Linkedin,Amazon,Microsoftandsoon.WeprovideChineseandEnglishversionsforcodersaroundtheworld.
Sphere Online Judge (SPOJ)
SPOJ(SphereOnlineJudge)isanonlinejudgesystemwithover315,000registeredusersandover20000problems.Thesolutiontoproblemscanbesubmittedinover60languagesincludingC,C++,Java,Python,C#,Go,Haskell,Ocaml,andF#.SPOJhasarapidlygrowingproblemset/tasksavailableforpractice24hours/day,includingmanyoriginaltaskspreparedbythecommunityofexpertproblemsettersassociatedwiththeproject.