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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. class HH{
  4. 	float d,r,h;
  5. 	public:
  6. 		friend istream&operator>>(istream&x,HH&y);
  7. 		friend ostream&operator<<(ostream&x,HH y);
  8. 		HH(){
  9. 			d=h=r=0;
  10. 		}
  11. 		HH(float a,float b,float c){
  12. 			d=a;
  13. 			r=b;
  14. 			h=c;
  15. 		}
  16. 		bool operator==(HH y);
  17. 		HH operator+(HH y);
  18. 		HH operator-(HH y);
  19. };
  20. istream&operator>>(istream&x,HH &y){
  21. 	cout<<"nhap chieu dai :"; x>>y.d;
  22. 	cout<<"nhap chieu rong: "; x>>y.r;
  23. 	cout<<"nhap chieu cao: "; x>>y.h;
  24. 	return x;
  25. }
  26. ostream&operator<<(ostream&x,HH y){
  27. 	x<<"Chieu dai: "<<y.d<<endl;
  28. 	x<<"Chieu rong: "<<y.r<<endl;
  29. 	x<<"Chieu cao: "<<y.h<<endl;
  30. 	return x;
  31. }
  32. bool HH::operator==(HH y){
  33. 	if(y.d==d&&y.r==r)
  34. 	return true;
  35. 	else return false;
  36. }
  37. HH HH::operator+(HH y){
  38. 	HH c;
  39. 	c.d=d+y.d;
  40. 	c.r=r+y.r;
  41. 	c.h=h+y.h;
  42. 	return c;
  43. }
  44. HH HH::operator-(HH y){
  45. 	HH c;
  46. 	c.d=d-y.d;
  47. 	c.r=r-y.r;
  48. 	c.h=h-y.h;
  49. 	return c;
  50. }
  51. int main(){
  52. 	HH h1(2,3,5);
  53. 	cout<<"Thong tin hh1: "<<endl;
  54. 	cout<<h1<<endl;
  55. 	HH h2;
  56. 	cout<<"nhap thong tin hh2: "<<endl;
  57. 	cin>>h2;
  58. 	HH T=h1+h2;
  59. 	HH H=h1-h2;
  60. 	ofstream f("hh.txt");
  61. 	cout<<"Tong 2 hh : "<<T<<endl;
  62. 	f<<"Tong 2 hh : "<<T<<endl;
  63. 	cout<<"Hieu 2 hh:"<<H<<endl;
  64. 	f<<"Hieu 2 hh:"<<H<<endl;
  65. 	if(h1==h2==true){
  66. 		cout<<"2 hh co cung chieu dai va chieu rong!"<<endl;
  67. 	    f<<"2 hh co cung chieu dai va chieu rong!"<<endl;
  68. 	}
  69. 	else{
  70. 		cout<<"2 k cung chieu dai va chieu rong!"<<endl;
  71. 		f<<"2 k cung chieu dai va chieu rong!"<<endl;
  72. 	}
  73. 	f.close();
  74. 	return 0;
  75. }
Success #stdin #stdout 0s 5280KB
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stdin
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Standard input is empty
stdout
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Thong tin hh1: 
Chieu dai: 2
Chieu rong: 3
Chieu cao: 5

nhap thong tin hh2: 
nhap chieu dai :nhap chieu rong: nhap chieu cao: Tong 2 hh : Chieu dai: 2
Chieu rong: 3
Chieu cao: 5

Hieu 2 hh:Chieu dai: 2
Chieu rong: 3
Chieu cao: 5

2 k cung chieu dai va chieu rong!
https://ideone.com/98TWY1
language:
C++ (gcc 8.3)
created:
6 hours ago
visibility:
public

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