C语言程序设计.doc

DescriptionXiao_ming有两个哥哥,大哥叫Da_min,二哥叫Er_min。三兄弟放学回家,父母分别跟他们打招呼。Input无Output请输出:HelloDa_min,HelloEr_min,HelloXiao_ming!SampleInputSampleOutputHelloDa_min,HelloEr_min,HelloXiao_ming!HINT请注意换行符AppendCode#include<>intmain(){printf("HelloDa_min,\n");printf("HelloEr_min,\n");printf("HelloXiao_ming!\n");}ProblemB:求圆的面积和周长Description从键盘输入圆的半径,求圆的面积和周长,。Input输入一个浮点型数据,有效数字不会超过十进制的6位。Output输出为两行。第一行为圆的面积,第二行为圆的周长,格式见sample。SampleInput3SampleOutputArea::、输出和算术运算符AppendCode法一#include<>intmain(){doubler,p,s;scanf("%lf",&r);p=2**r;s=*r*r;printf("Area:%lf\n",s);printf("Perimeter:%lf\n",p);}法二#include<>#(){doubler;scanf("%d",&r);printf("Area:%lf\n",pi*r*r);printf("Perimeter:%lf\n",2*pi*r);}:平均值Description求3个数的平均值。Input输入只有一行,为3个较小的整数。Output输出为这3个整数的平均值,保留3位小数。。AppendCode#include<>intmain(){inta,b,c;scanf("%d%d%d",&a,&b,&c);printf("%.3lf",(a+b+c)/);}:求字符的值Description从键盘输入3个字符(不含双字节字符),分别输出每个字符的十进制值(ASCII码)、八进制值和十六进制值。Input输入为3个字符。Output输出为3行。每一行为每个字符(对应输入顺序)的十进制、八进制和十六进制值,用空格分隔开。每个输出的值占3个字符,不足3个字符前面补0。SampleInput0ASampleOutput048060030032040020065101041HINT了解字符值的存储和整型的关系。AppendCode#include<>intmain(){chara,b,c;scanf("%c%c%c",&a,&b,&c);printf("%.3d%.3o%.3x\n",a,a,a);printf("%.3d%.3o%.3x\n",b,b,b);printf("%.3d%.3o%.3x\n",c,c,c);}:最简单的程序Description输出一行“Helloworld!”。Input无OutputHelloworld!SampleInputSampleOutputHelloworld!HINTAppendCode#include<>intmain(){printf("Helloworld!");}ProblemB:算术基本运算Description计算两整数x和y(0<x,y<1000)的和、差、积、商、余数、x的平方和y的三次方。Input输入只有一行,格式见sample。Output输出为多行,按顺序每行输出x,y的和、差、积、商、余数、x的平方和y的三次方,格式见sampleSampleInputx=11,y=3SampleOutputx+y:14x-y:8x*y:33x/yquotient:3,remainder:2x^2:121y^3:27HINT注意输入输出格式。了解C语言整数除法运算符的特点,并且没有求幂的运算符。AppendCode#include<>#include<>intmain(){intx,y;scanf("x=%d,y=%d",&x,&y);printf("x+y:%d\n",x+y);printf("x-y:%d\n",x-y);printf(