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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. class MAY{
  4. 	float Trongluong,Giatien;
  5. 	public:
  6. 		MAY operator+(MAY y);
  7. 		MAY(){
  8. 			Trongluong=Giatien=0;
  9. 		}
  10. 		MAY(float a,float b){
  11. 			Trongluong=a;
  12. 			Giatien=b;
  13. 		}
  14. 		friend istream&operator>>(istream&x ,MAY&y);
  15. 		friend ostream&operator<<(ostream&x,MAY y);
  16. 		bool operator==(MAY y);
  17. };
  18. istream&operator>>(istream&x,MAY&y){
  19. 	cout<<"Nhap trong luong: "; x>>y.Trongluong;
  20. 	cout<<"Nhap gia tien: "; x>>y.Giatien;
  21. 	return x;
  22. }
  23. ostream&operator<<(ostream&x,MAY y){
  24. 	x<<"Trong luong :"<<y.Trongluong<<endl;
  25. 	x<<"Gia tien: "<<y.Giatien<<endl;
  26. 	return x;
  27. }
  28. MAY MAY::operator+(MAY y){
  29. 	MAY m;
  30. 	m.Trongluong =Trongluong+y.Trongluong;
  31. 	m.Giatien=Giatien+y.Giatien;
  32. 	return m;
  33. }
  34. bool MAY:: operator==(MAY y){
  35. 	if(y.Trongluong==Trongluong&&y.Giatien==Giatien)
  36. 	return true;
  37. 	else return false;
  38. }
  39. int main(){
  40. 	MAY m(2,300);
  41. 	MAY n;
  42. 	cout<<"nhap gia tri cua may n:"<<endl;
  43. 	cin>>n;
  44. 	ofstream f("may.txt");
  45. 	cout<<"tong 2 may la: "<<m+n<<endl;
  46. 	f<<"tong 2 may :"<<m+n<<endl;
  47. 	if(m==n==true){
  48. 		cout<<"2 may co cung gia va trong luong!"<<endl;
  49. 		f<<"2 may co cung gia va trong luong!"<<endl;
  50. 	}
  51. 	else{
  52. 		cout<<"2 may ko cung gia va trong luong"<<endl;
  53. 		f<<"2 may ko cung gia va trong luong"<<endl;
  54. 	}
  55. 	f.close();
  56. 	return 0;
  57. }
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin 
Standard input is empty
stdout 
nhap gia tri cua may n:
Nhap trong luong: Nhap gia tien: tong 2 may la: Trong luong :2
Gia tien: 300

2 may ko cung gia va trong luong
https://ideone.com/OnbFoM
language:
C++ (gcc 8.3)
created:
12 hours ago
visibility:
public

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