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  1. #include <bits/stdc++.h>
  2.  
  3. int main(){
  4. 	double a,b,c;
  5. 	scanf("%lf %lf %lf",&a,&b,&c);
  6. 	double p=(a+b+c)/2;
  7. 	double area=sqrt(p*(p-a)*(p-b)*(p-c));
  8. 	printf("%lf",area);
  9. }
Success #stdin #stdout 0.01s 5296KB
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stdin
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3 4 5
stdout
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6.000000
https://ideone.com/x7vFeW
language:
C++14 (gcc 8.3)
created:
3 hours ago
visibility:
public

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