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  1. #include <stdio.h>
  2.  
  3. // **************************************************
  4. // Function: calcDogToHumanYears
  5. //
  6. // Description:
  7. //   Converts a dog's age in years to approximate human years.
  8. //   The conversion is based on the following rules:
  9. //     1) First dog year = 15 human years
  10. //     2) Second dog year = 9 additional human years (total 24)
  11. //     3) Each additional dog year = 5 additional human years
  12. //
  13. // Parameters:
  14. //   dogYear - dog's age in years
  15. //
  16. // Returns:
  17. //   The equivalent human years as a float
  18. // **************************************************
  19. float calcDogToHumanYears(int dogYear)
  20. {
  21.     float humanYears;  /* result to return */
  22.  
  23.     if (dogYear <= 0)
  24.     {
  25.         humanYears = 0.0;
  26.     }
  27.     else if (dogYear == 1)
  28.     {
  29.         humanYears = 15;
  30.     }
  31.     else if (dogYear == 2)
  32.     {
  33.         humanYears = 24;
  34.     }
  35.     else
  36.     {
  37.         humanYears = 24 + (dogYear - 2) * 5;
  38.     }
  39.  
  40.     return humanYears;
  41. }
  42.  
  43. // **************************************************
  44. // Function: main
  45. //
  46. // Description:
  47. //   Tests the calcDogToHumanYears function with
  48. //   several sample dog ages and prints the results.
  49. // **************************************************
  50. int main(void)
  51. {
  52.     printf("Dog age: 1  -> Human years: %.1f\n", calcDogToHumanYears(1));
  53.     printf("Dog age: 2  -> Human years: %.1f\n", calcDogToHumanYears(2));
  54.     printf("Dog age: 3  -> Human years: %.1f\n", calcDogToHumanYears(3));
  55.     printf("Dog age: 5  -> Human years: %.1f\n", calcDogToHumanYears(5));
  56.     printf("Dog age: 0  -> Human years: %.1f\n", calcDogToHumanYears(0));
  57.     return 0;
  58. }
Success #stdin #stdout 0.01s 5280KB
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stdin
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Standard input is empty
stdout
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Dog age: 1  -> Human years: 15.0
Dog age: 2  -> Human years: 24.0
Dog age: 3  -> Human years: 29.0
Dog age: 5  -> Human years: 39.0
Dog age: 0  -> Human years: 0.0
https://ideone.com/xFu5jz
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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