圓的面積
#include<stdio.h>
#define PI 3.14
double calculateArea (int radius);
int main ()
{
int cRadius =0;
double Area =0.0;
printf("請輸入圓的半徑:\n");
scanf("%d",&cRadius);
Area=calculateArea(cRadius);
printf("圓的面積是:%f\n",Area);
return 0;
}
double calculateArea (int radius)
{
double result = PI*radius*radius;
return result;
}
名字
# incluede<stdio.h>
main ()
{
printf("方澤山\n");
return 0;
}
