杭电ACM部分题目答案.docx
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杭电ACM部分题目答案.docx
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杭电ACM部分题目答案
杭电ACM
1001SumProblem2
1089A+BforInput-OutputPractice(I)4
1090A+BforInput-OutputPractice(II)6
1091A+BforInput-OutputPractice(III)8
1092A+BforInput-OutputPractice(IV)9
1093A+BforInput-OutputPractice(V)11
1094A+BforInput-OutputPractice(VI)13
1095A+BforInput-OutputPractice(VII)14
1096A+BforInput-OutputPractice(VIII)16
2000ASCII码排序17
2001计算两点间的距离19
2002计算球体积20
2003求绝对值21
2004成绩转换22
2005第几天?
24
2006求奇数的乘积26
2007平方和与立方和27
2008数值统计28
2009求数列的和30
2010水仙花数31
2011多项式求和33
2012素数判定34
2014青年歌手大奖赛_评委会打分36
2015偶数求和38
2016数据的交换输出40
2017字符串统计42
2019数列有序!
43
2020绝对值排序45
2021发工资咯:
)46
2033人见人爱A+B48
2039三角形50
2040亲和数51
姓名:
郑春杰
班级:
电商1001
学号:
1010504134
1001SumProblem
ProblemDescription
Hey,welcometoHDOJ(HangzhouDianziUniversityOnlineJudge).
Inthisproblem,yourtaskistocalculateSUM(n)=1+2+3+...+n.
Input
Theinputwillconsistofaseriesofintegersn,oneintegerperline.
Output
Foreachcase,outputSUM(n)inoneline,followedbyablankline.Youmayassumetheresultwillbeintherangeof32-bitsignedinteger.
SampleInput
1
100
SampleOutput
1
5050
Author
DOOMIII
解答:
#include
main()
{
intn,i,sum;
sum=0;
while((seanf("%d",&n)!
=-1))
{
sum=0;
for(i=0;i<=n;i++)
sum+=i;
printf("%d\n\n",sum);
}
}
1089A+BforInput-OutputPractice
(I)
ProblemDescription
YourtaskistoCalculatea+b.
Tooeasy?
!
Ofcourse!
Ispeciallydesignedtheproblemforacmbeginners.
Youmusthavefoundthatsomeproblemshavethesametitleswiththisone,yes,alltheseproblemsweredesignedforthesameaim.
Input
Theinputwillconsistofaseriesofpairsofintegersaandb,separatedbyaspace,onepairofintegersperline.
Output
Foreachpairofinputintegersaandbyoushouldoutputthesumofaandbinoneline,andwithonelineofoutputforeachlineininput.
SampleInput
15
1020
SampleOutput
6
30
Author
lcy
Recommend
JGShining
解答:
#include
main()
{
inta,b;
while(scanf("%d%d",&a,&b)!
=EOF)printf("%d\n",a+b);
}
1090A+BforInput-OutputPractice
(II)
ProblemDescription
YourtaskistoCalculatea+b.
Input
InputcontainsanintegerNinthefirstline,andthenNlinesfollow.Eachlineconsistsofapairofintegersaandb,separatedbyaspace,onepairofintegersperline.
Output
Foreachpairofinputintegersaandbyoushouldoutputthesumofaandbinoneline,andwithonelineofoutputforeachlineininput.
SampleInput
2
15
1020
SampleOutput
6
30
Author
lcy
解答:
#include
#defineM1000
voidmain()
{
inta,b,n,j[M],i;//printf("pleaseinputn:
\n");scanf("%d",&n);
for(i=0;i { scanf ("%d%d",&a,&b); //printf("%d%d",a,b); j[i ]=a+b; }i =0; while( i { printf ("%d",j[i]); i++ J printf ("\n"); } 1091A+BforInput-OutputPractice (III) ProblemDescription YourtaskistoCalculatea+b. Input Inputcontainsmultipletestcases.Eachtestcasecontainsapairofintegersaandb,onepairofintegersperline.Atestcasecontaining00terminatestheinputandthistestcaseisnottobeprocessed. Output Foreachpairofinputintegersaandbyoushouldoutputthesumofaandbinoneline,andwithonelineofoutputforeachlineininput. SampleInput 15 102000 SampleOutput 6 30 Author lcy 解答: #include main() { 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) ProblemDescription YourtaskistoCalculatethesumofsomeintegers. Input Inputcontainsmultipletestcases.EachtestcasecontainsaintegerN,andthenNintegersfollowinthesameline.Atestcasestartingwith0terminatestheinputandthistestcaseisnottobeprocessed. Output Foreachgroupofinputintegersyoushouldoutputtheirsuminoneline,andwithonelineofoutputforeachlineininput. SampleInput 41234 512345 SampleOutput 10 15 Author Icy Recommend JGShining 解答: #include intmain() { intn,sum,i,t; while(scanf("%d",&n)! =EOF&&n! =0) { sum=0; for(i=0;i { scanf("%d",&t); sum=sum+t; } printf("%d\n",sum); } 1093A+BforInput-OutputPractice (V) ProblemDescription Yourtaskistocalculatethesumofsomeintegers. Input InputcontainsanintegerNinthefirstline,andthenNlinesfollow.EachlinestartswithaintegerM,andthenMintegersfollowinthesameline. Output Foreachgroupofinputintegersyoushouldoutputtheirsuminoneline,andwithonelineofoutputforeachlineininput. SampleInput 2 41234 512345 SampleOutput 10 解答: #include main() { intn,a,b,i,j,sum; sum=0; while(scanf("%d\n",&n)! =-1) { for(i=0;i { scanf("%d",&b); for(j=0;j { scanf("%d",&a); sum+=a; } printf("%d\n",sum); sum=0; } } } 1094A+BforInput-OutputPractice (VI) ProblemDescription Yourtaskistocalculatethesumofsomeintegers. Input Inputcontainsmultipletestcases,andonecaseoneline.EachcasestartswithanintegerN,andthenNintegersfollowinthesameline. Output ForeachtestcaseyoushouldoutputthesumofNintegersinoneline,andwithonelineofoutputforeachlineininput. SampleInput 41234 512345 SampleOutput 10 15 解答: #include main() { intn,a,b,i,j,sum; sum=0; while(scanf("%d\n",&n)! =-1) { for(j=0;j { scanf("%d",&a); sum+=a; } printf("%d\n",sum); sum=0; } } [CopytoClipboard][SavetoFile] 1095A+BforInput-OutputPractice (VII) ProblemDescription YourtaskistoCalculatea+b. Input Theinputwillconsistofaseriesofpairsofintegersaandb,separatedbyaspace,onepairofintegersperline. Output Foreachpairofinputintegersaandbyoushouldoutputthesumofaandb,andfollowedbyablankline. SampleInput 15 1020 SampleOutput 6 30 解答: #include main() { inta,b; while(scanf("%d%d",&a,&b)! =EOF) printf("%d\n\n",a+b); } 1096A+BforInput-OutputPractice (VIII) ProblemDescription Yourtaskistocalculatethesumofsomeintegers. Input InputcontainsanintegerNinthefirstline,andthenNlinesfollow.EachlinestartswithaintegerM,andthenMintegersfollowinthesameline. Output Foreachgroupofinputintegersyoushouldoutputtheirsuminoneline,andyoumustnotethatthereisablanklinebetweenoutputs. SampleInput 3 SampleOutput 10 Author Icy Recommend JGShining 解答: intmain () { int a,b,i,j,l[1000], scanf ("%d",&i); getchar(); for (j=1;j<=i;j++) l [j]=0; for (j=1;j<=i;j++) k; { scanfgetcharfor { ("%d",&a); (); (k=1;k<=a;k++) scanfgetcharl ("%d",&b); (); [j]+=b; }for printfprintf (j =1;j<=i-1;j++) ("%d\n\n",l[j]); ("%d\n",l[i]); 2000ASCII码排序 ProblemDescription 输入三个字符后,按各字符的ASCII码从小到大的顺序输出这三个字符。 Input 输入数据有多组,每组占一行,有三个字符组成,之间无空格。 Output 对于每组输入数据,输出一行,字符中间用一个空格分开。 SampleInput qwe asd zxc SampleOutput eqw ads cxz Author Icy Source c语言程序设计练习 (一) Recommend JGShining 解答: #include main() { chara,b,c,d; while(scanf("%c%c%c",&a,&b,&c)! =EOF){ getchar(); if(a>=b) { if(c>=a) printf ("%c%c%c\n" b, a, c); elseif (b>=c) printf ("%c%c%c\n" c, b, a); elseif (b printf ("%c%c%c\n" b, c, a); else{ if(c>=b) printf ("%c%c%c\n" a,b,c); elseif (c>=a) printf ("%c%c%c\n" a,c,b); elseif (a>c) printf ("%c%c%c\n" c,a,b); 2001计算两点间的距离 ProblemDescription 输入两点坐标(X1,Y1),(X2,Y2),计算并输出两点间的距离。 Input 输入数据有多组,每组占一行,由4个实数组成,分别表示x1,y1,x2,y2,数据之间用空格隔 开。 Output 对于每组输入数据,输出一行,结果保留两位小数。 SampleInput 0001 0110 SampleOutput 1.00 1.41 Author lcy Source c语言程序设计练习 (一) Recommend JGShining 解答: #include #include main() { doublea,b,c,d,s; while(scanf("%lf%lf%lf%lf",&a,&b,&c,&d)! =EOF) { s=sqrt((a-c)*(a-c)+(b-d)*(b-d)); printf("%.2lf\n",s); } } 2002计算球体积 ProblemDescription 根据输入的半径值,计算球的体积。 Input 输入数据有多组,每组占一行,每行包括一个实数,表示球的半径。 Output 输出对应的球的体积,对于每组输入数据,输出一行,计算结果保留三位小数。 SampleInput 11.5 SampleOutput 4.189 14.137 Hint #definePI3.1415927 Author lcy Source c语言程序设计练习 (一) Recommend JGShining 解答: #include #definePI3.1415927 main() { doublea,v; while(scanf("%lf",&a)! =EOF) { v=4*PI*a*a*a/3; printf("%.3lf\n",v); } } 2003求绝对值 ProblemDescription 求实数的绝对值。 Input 输入数据有多组,每组占一行,每行包含一个实数。 Output 对于每组输入数据,输出它的绝对值,要求每组数据输出一行,结果保留两位小数。 SampleInput 123 -234.00 SampleOutput 123.00 234.00 Author lcy Source c语言程序设计练习 (一) Recommend JGShining 解答: #include main() { doublea; while(scanf("%lf",&a)! =EOF) { if(a<0) a=-a; printf("%.2lf\n",a); } } 2004成绩转换 ProblemDescription 输入一个百分制的成绩t,将其转换成对应的等级,具体转换规则如下: 90~100为A; 80~89为B; 70~79为C; 60~69为D; 0~59为E; Input 输入数据有多组,每组占一行,由一个整数组成。 Output "Scoreis 对于每组输入数据,输出一行。 如果输入数据不在0~100范围内,请输出一行: error! 。 ” SampleInput 56 67 100 123 SampleOutput E D A Scoreiserror! Author lcy Source c语言程序设计练习 (一) Recommend JGShining 解答: #include { if(n>100||n<0)printf ("Scoreiserror! \n elseif (n>=90)printf ("A\n"); elseif (n>=80)printf ("B\n"); elseif
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