#include "stdio.h"尘败
#include "conio.h"
#define pi 3.14
main()
{
float r,h,result;
printf("please enter r:\n");
scanf("%f",&r);
printf("\nplease enter h:\n");
scanf("悉饥%f",&h);
printf("\n"派陆颤);
result=pi*r*r*h;
printf("the result is %f",result);
getch();
}
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