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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	double a,b,c;
  7. 	cin >> a >> b >> c;
  8. 	if ((a+b>c) || (b+c>a) || (c+a>b)) {
  9. 		double cv=a+b+c;
  10. 		double p=(a+b+c)/2;
  11. 		double dt=sqrt(p*(p-a)*(p-b)*(p-c));
  12. 		if (a==b==c) {
  13. 			cout << "Tam giac deu" << endl;
  14. 			cout << "Chu vi: " << cv << endl;
  15. 			cout << "Dien tich: " << dt;
  16. 		} else if (a==b || b==c || c==a) {
  17. 			cout << "Tam giac can" << endl;
  18. 			cout << "Chu vi: " << cv << endl;
  19. 			cout << "Dien tich: " << dt;
  20. 		} else if (pow(a,2)+pow(b,2)==pow(c,2) || pow(b,2)+pow(c,2)==pow(a,2) || pow(c,2)+pow(a,2)==pow(b,2)) {
  21. 			cout << "Tam giac vuong" << endl;			
  22. 			cout << "Chu vi: " << cv << endl;
  23. 			cout << "Dien tich: " << dt;
  24. 		} else if (a==b || b==c || c==a && pow(a,2)+pow(b,2)==pow(c,2) || pow(b,2)+pow(c,2)==pow(a,2) || pow(c,2)+pow(a,2)==pow(b,2)) {
  25. 			cout << "Tam giac vuong can" << endl;
  26. 			cout << "Chu vi: " << cv << endl;
  27. 			cout << "Dien tich: " << dt;
  28. 		}
  29. 	} else {
  30. 		cout << "Tam giac thuong";	}
  31. }
Success #stdin #stdout 0.01s 5288KB
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stdin
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3 4 5
stdout
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Tam giac vuong
Chu vi: 12
Dien tich: 6
https://ideone.com/TBb9fG
language:
C++14 (gcc 8.3)
created:
8 days ago
visibility:
public

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