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  1. #include <stdio.h>
  2. #define PI 3.14159265358979323846 
  3.  
  4. double delta_cone(double r, double h) {
  5.     return (1.0 / 3.0) * PI * r * r * h; 
  6. }
  7.  
  8. int main() {
  9.     double radius, height;
  10.  
  11.     printf("円の半径 r : ");
  12.     scanf("%lf", &radius);
  13.     printf("円錐の高さ h: ");
  14.     scanf("%lf", &height);
  15.  
  16.     double volume = delta_cone(radius, height);
  17.  
  18.     printf("円錐の体積V: %.2f\n", volume);
  19. 	return 0;
  20. }
  21.  
Success #stdin #stdout 0.01s 5280KB
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Standard input is empty
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円の半径 r : 円錐の高さ h: 円錐の体積V: 0.00
https://ideone.com/pFaSWn
language:
C (gcc 8.3)
created:
5 hours ago
visibility:
public

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