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  1. #include<stdio.h>
  2. #include<math.h>
  3. int main(){
  4. float a,b,c,s,area;
  5. printf("Enter the value of a,b,c:");
  6. scanf("%f %f %f",&a,&b,&c);
  7. s=(a+b+c)/2;
  8. area=sqrt(s*(s-a)*(s-b)*(s-c));
  9. printf("%f",area);
  10. return 0;
  11. }
  12.  
Success #stdin #stdout 0s 5320KB
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Enter the value of a,b,c:-nan
https://ideone.com/aY8j2D
language:
C (gcc 8.3)
created:
50 minutes ago
visibility:
public

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