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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4.  
  5. int main() 
  6. {
  7. 	float a;
  8. 	float b;
  9. 	float c;
  10. 	float d;
  11. 	float r1;
  12. 	float r2;
  13.  
  14. 	scanf("%f %f %f ", &a, &b, &c);
  15.  
  16. 	d = b*b - 4*a*c;
  17.  
  18. 	if(d > 0)
  19. 	{
  20. 		r1 = (-b + sqrt(d)) / (2*a);
  21. 		r2 = (-b - sqrt(d)) / (2*a);
  22.  
  23. 		printf("roots are real and distinct\n");
  24. 		printf("%.2f %.2f", r1, r2);
  25. 	}
  26. 	else if (d == 0)
  27. 	{
  28. 		r1 = -b / (2*a);
  29.  
  30. 		printf("roots are real and equal\n");
  31. 		printf("%.2f %.2f", r1, r1);
  32. 	}
  33. 	else
  34. 	{
  35. 		printf("roots are complex");
  36. 	}
  37. 	return 0;
  38. }
  39.  
Success #stdin #stdout 0s 5320KB
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1 1 -2
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roots are real and distinct
1.00 -2.00
https://ideone.com/6mFQQW
language:
C (gcc 8.3)
created:
11 days ago
visibility:
public

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