text: #define PI 3.14159f
  
  #include "stdio.h"
  
  int main(void) {
  
      float radius;
      
      printf("%s\n", "Please enter the sphere radius as an integer ...");
      scanf("%f", &radius);
  
      float volume = 4.0f / 3.0f * (PI  * (radius * radius * radius));
      printf("Sphere volume is: %.2f cubic meters\n", volume);
  
      return 0;
  }
  