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选修课考试作业2012素数判定................................................................................................................................342014青年歌手大奖赛_评委会打分362017字符串统计........................................................................................................................................................422019数列有序!..............................................................................................................................432020绝对值排序............................................................................................................................452033人见人爱A+B.......................................................................................................................482039三角形....................................................................................................................................502040亲和数....................................................................................................................................51姓名：春杰级：电商141001SumProblemProblemDescriptionHey,welcometoHDOJ(HangzhouDianziUniversityOnlineJudge).Inthisproblem,yourtaskistocalculateSUM(n)=1+2+3+...+n.InputTheinputwillconsistofaseriesofintegersn,oneintegerperline.OutputForeachcase,outputSUM(n)inoneline,followedbyablankline.Youmayassumetheresultwillbeintherangeof32-bitsignedinteger.SampleInput1100SampleOutput15050AuthorDOOMIII解答：#includestdio.hmain(){intn,i,sum;sum=0;while((scanf(%d,&n)!=-1)){sum=0;for(i=0;i=n;i++)sum+=i;printf(%d\n\n,sum);}}1089A+BforInput-OutputPractice(I)ProblemDescriptionYourtaskistoCalculatea+b.Tooeasy?!Ofcourse!Ispeciallydesignedtheproblemforacmbeginners.Youmusthavefoundthatsomeproblemshavethesametitleswiththisone,yes,alltheseproblemsweredesignedforthesameaim.InputTheinputwillconsistofaseriesofpairsofintegersaandb,separatedbyaspace,onepairofintegersperline.OutputForeachpairofinputintegersaandbyoushouldoutputthesumofaandbinoneline,andwithonelineofoutputforeachlineininput.SampleInput151020SampleOutput630AuthorlcyRecommendJGShining解答：#includestdio.hmain(){inta,b;while(scanf(%d%d,&a,&b)!=EOF)printf(%d\n,a+b);}1090A+BforInput-OutputPractice(II)ProblemDescriptionYourtaskistoCalculatea+b.InputInputcontainsanintegerNinthefirstline,andthenNlinesfollow.Eachlineconsistsofapairofintegersaandb,separatedbyaspace,onepairofintegersperline.OutputForeachpairofinputintegersaandbyoushouldoutputthesumofaandbinoneline,andwithonelineofoutputforeachlineininput.SampleInput2151020SampleOutput630AuthorlcyRecommendJGShining解答：#includestdio.h#defineM1000voidmain(){inta,b,n,j[M],i;//printf(pleaseinputn:\n);scanf(%d,&n);for(i=0;in;i++){scanf(%d%d,&a,&b);//printf(%d%d,a,b);j[i]=a+b;}i=0;while(in){printf(%d,j[i]);i++;printf(\n);}}1091A+BforInput-OutputPractice(III)ProblemDescriptionYourtaskistoCalculatea+b.InputInputcontainsmultipletestcases.Eachtestcasecontainsapairofintegersaandb,onepairofintegersperline.Atestcasecontaining00terminatestheinputandthistestcaseisnottobeprocessed.OutputForeachpairofinputintegersaandbyoushouldoutputthesumofaandbinoneline,andwithonelineofoutputforeachlineininput.SampleInput15102000SampleOutput630AuthorlcyRecommendJGShining解答：#includestdio.hmain(){inta,b;scanf(%d%d,&a,&b);while(!(a==0&&b==0)){printf(%d\n,a+b);scanf(%d%d,&a,&b);}}1092A+BforInput-OutputPractice(IV)ProblemDescriptionYourtaskistoCalculatethesumofsomeintegers.InputInputcontainsmultipletestcases.EachtestcasecontainsaintegerN,andthenNintegersfollowinthesameline.Atestcasestartingwith0terminatestheinputandthistestcaseisnottobeprocessed.OutputForeachgroupofinputintegersyoushouldoutputtheirsuminoneline,andwithonelineofoutputforeachlineininput.SampleInput412345123450SampleOutput1015AuthorlcyRecommendJGShining解答：#includestdio.hintmain(){intn,sum,i,t;while(scanf(%d,&n)!=EOF&&n!=0){sum=0;for(i=0;in;i++){scanf(%d,&t);sum=sum+t;}printf(%d\n,sum);}}1093A+BforInput-OutputPractice(V)ProblemDescriptionYourtaskistocalculatethesumofsomeintegers.InputInputcontainsanintegerNinthefirstline,andthenNlinesfollow.EachlinestartswithaintegerM,andthenMintegersfollowinthesameline.OutputForeachgroupofinputintegersyoushouldoutputtheirsuminoneline,andwithonelineofoutputforeachlineininput.SampleInput241234512345SampleOutput1015Authorlcy解答：#includestdio.hmain(){intn,a,b,i,j,sum;sum=0;while(scanf(%d\n,&n)!=-1){for(i=0;in;i++){scanf(%d,&b);for(j=0;jb;j++){scanf(%d,&a);sum+=a;}printf(%d\n,sum);sum=0;}}}1094A+BforInput-OutputPractice(VI)ProblemDescriptionYourtaskistocalculatethesumofsomeintegers.InputInputcontainsmultipletestcases,andonecaseoneline.EachcasestartswithanintegerN,andthenNintegersfollowinthesameline.OutputForeachtestcaseyoushouldoutputthesumofNintegersinoneline,andwithonelineofoutputforeachlineininput.SampleInput41234512345SampleOutput1015AuthorlcyRecommendJGShining解答：#includestdio.hmain(){intn,a,b,i,j,sum;sum=0;while(scanf(%d\n,&n)!=-1){for(j=0;jn;j++){scanf(%d,&a);sum+=a;}printf(%d\n,sum);sum=0;}}[CopytoClipboard][SavetoFile]1095A+BforInput-OutputPractice(VII)ProblemDescriptionYourtas