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  1. #include  <stdio.h>
  2. #include  <stdlib.h>
  3. #include  <math.h>
  4. #define   EPS 1e-6
  5. int main(void)
  6. {
  7.     float  a, b, c, disc, p, q;
  8.     printf("EPS = %e\n",EPS);
  9.     scanf("%f,%f,%f", &a, &b, &c);
  10.     if (fabs(a) <= EPS)        
  11.     {
  12.         printf("It is not a quadratic equation!\n");
  13.         exit(0);
  14.     }
  15.  
  16.     return 0;
  17. }
  18.  
Success #stdin #stdout 0.01s 5320KB
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stdin
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1,2,1
stdout
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EPS = 1.000000e-06
https://ideone.com/zi7smG
language:
C (gcc 8.3)
created:
13 hours ago
visibility:
public

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