C语言键盘输入圆环内外半径,求该圆环的面积.

floatmax(floata[])//求数组a中的最大值函数{floatmax=0;for(inti=0;imax)max=a[i];//将数组a中比max大的元素存入max中returnmax;}

我理解的简单的数学表达式：纯数字+运算符+纯数字+（回车）而且这里的运算符指+,-,*,/四种之一,纯数字是指整数如下：#include#defineNUMSIZE10//操作数长度intch_to_

#include#includemain(){floata,b,c,p;doubleS;printf("请输入三边长度(如3,4,5)：");//注意逗号是西文的scanf("%f,%f,%f",&a

#includevoidmain(){inti,n;intm=1;intsum=0;printf("请输入n的值：");scanf("%d",&n);for(i=1;i

#include "stdio.h"void main(){  int n,sum=0;  printf(&q

#inlcudevoidmain(){inta[6];inti,j,max=0,sum=0;doubleavg=0.0;printf("请输入六个数：\n");for(i=0;imax)max=a[i

#includevoidmain()ints,num,i,a;s=0;for(i=1;i

什么报错?再问：就只有这个Cpp12.obj-1error(s),0warning(s)再答：你看下那个错误具体是什么，写一下。再问：--------------------Configuration

#includevoidmain(){inta[10];floataver=0;for(inti=0;i

importjava.util.Scanner;publicclassCircle{    publicstaticvoidmain(String[]args)

#include#includeintmain(){doublea,b,c,p,s;printf("请输入三角形的三边长:");scanf("%lf%lf%lf",&a,&b,&c);p=(a+b+c

#includevoidmain(){intm,n,r,x;scanf("%d,%d",&m,&n);x=m*n;while(n!=0){r=m%n;m=n;n=r;}printf("%d%d\n",

#includemain(){inta,b;scanf("%d%d",&a,&b);printf("最大数为%d\n",a>b?a:b);}

#includevoidmain(){inta,b;doubleave;//必须是浮点型的ave=0.00;a=0;b=0;printf("输入两个整数：');scanf("%d%d",&a,&b);

#includeintmain(){intcount[26]={0},i;charc;while((c=getchar())!='\n')if(c>='a'&&c再问：#includeintmain(

#include#defineMianji(x)Pi*r*r#definePi3.1415926intmain(){\x09floatr;\x09printf("请输入半径r：\n");\x09sca

#include"stdio.h"intmain(intargc,char*argv[]){\x09intarr[10];\x09for(inti=0;i

#includeintmain(void){intcount=0,n,sum=0;whlie(scanf("%d",&n)!=EOF){if(n==-1)break;elsesum+=n;count+

#includmain(){inta,b,c;floatm,n,k,l,p,q;chars;s='i';printf("inputabc:/n");scanf("%d%d%d",&a,&b,&c);i

intmain(){intn=0;inti=0;intsum=0;scanf("%d",&n);for(i=2;i