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1、....1000A+BProblemProblemDescriptionCalculateA+B.InputEachlinewillcontaintwointegersAandB.Processtoendoffile. OutputForeachcase,outputA+Binoneline. SampleInput11 SampleOutput2 AuthorHDOJ.word资料可编辑.....代码：#includeintmain(){inta,b;while(scanf("%d%d",&
2、a,&b)!=EOF)printf("%d",a+b);}1001SumProblemProblemDescriptionHey,welcometoHDOJ(HangzhouDianziUniversityOnlineJudge).Inthisproblem,yourtaskistocalculateSUM(n)=1+2+3+...+n. InputTheinputwillconsistofaseriesofintegersn,oneintegerperline. .word资料可编辑.....Output
3、Foreachcase,outputSUM(n)inoneline,followedbyablankline.Youmayassumetheresultwillbeintherangeof32-bitsignedinteger. SampleInput1100 SampleOutput15050 AuthorDOOMIII解答：#includemain(){.word资料可编辑.....intn,i,sum;sum=0;while((scanf("%d",&n)!=-1)){sum=0;for
4、(i=0;i<=n;i++)sum+=i;printf("%d",sum);}}1002A+BProblemIIProblemDescriptionIhaveaverysimpleproblemforyou.GiventwointegersAandB,yourjobistocalculatetheSumofA+B..word资料可编辑..... InputThefirstlineoftheinputcontainsanintegerT(1<=T<=20)whichmeansthenumberoftest
5、cases.ThenTlinesfollow,eachlineconsistsoftwopositiveintegers,AandB.Noticethattheintegersareverylarge,thatmeansyoushouldnotprocessthembyusing32-bitinteger.Youmayassumethelengthofeachintegerwillnotexceed1000. OutputForeachtestcase,youshouldoutputtwolines.Thefi
6、rstlineis"Case#:",#meansthenumberofthetestcase.Thesecondlineistheanequation"A+B=Sum",SummeanstheresultofA+B.Notetherearesomespacesinttheequation.Outputablanklinebetweentwotestcases. SampleInput212112233445566778899998877665544332211 SampleOutputCase1:1+2=3.w
7、ord资料可编辑.....Case2:112233445566778899+998877665544332211=1111111111111111110 AuthorIgnatius.L 代码：#include#includeintmain(){charstr1[1001],str2[1001];intt,i,len_str1,len_str2,len_max,num=1,k;scanf("%d",&t);getchar();while(t--){inta[1001]={0
8、},b[1001]={0},c[1001]={0};scanf("%s",str1);len_str1=strlen(str1);for(i=0;i<=len_str1-1;++i).word资料可编辑.....a[i]=str1[len_str1-1-i]-'0';scanf("%s",str2);len_str2=strlen(str2);for(i=0;i<=len_str2-1
