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  1. #include <iostream>
  2. #include <iomanip>
  3. using namespace std;
  4.  
  5. const int MAX_MINUTE = 10;
  6.  
  7. class  Timer {
  8. 	private:
  9. 	int  min, sec;
  10.  
  11. 	public:
  12. 	Timer() : min(0), sec(0) {}
  13. 	Timer(int s) : min(s / 60), sec(s % 60) {
  14. 		while (min >= MAX_MINUTE) min -= MAX_MINUTE;
  15. 	}
  16. 	Timer( int m,  int s) : min(m), sec(s) {
  17. 		while (min >= MAX_MINUTE) min -= MAX_MINUTE;
  18. 	}
  19.  
  20. 	Timer  operator++ (){
  21. 		sec++;
  22. 		if(sec>=60){
  23. 			min+=sec/60;
  24. 			sec%=60;
  25. 		}
  26. 		if(min>10 || (min==10 && sec!=0)) min%=10;
  27. 		return *this;
  28. 	};
  29.  
  30. 	Timer operator-- (int){
  31. 		Timer c(min,sec);
  32. 		if(c.sec==0){
  33. 			min--;
  34. 			sec=59;
  35. 		}
  36. 		return c;
  37. 	};
  38.  
  39. 	friend ostream& operator<<(ostream& out, const Timer& foo){
  40. 	out<<setw(2)<<setfill('0')<<foo.min<<" : ";
  41. 	if(foo.sec >= 10) out<<foo.sec;
  42. 	else out<<setw(2)<<setfill('0')<<foo.sec;
  43.  
  44. 	return out;
  45. 	}
  46.  
  47. 	friend Timer operator+ (const Timer& a, const Timer& b){
  48. 		Timer c;
  49. 		c.min=a.min+b.min;
  50. 		c.sec=a.sec+b.sec;
  51. 		if(c.sec>=60){
  52. 			c.min++;
  53. 			c.sec%=60;
  54. 		}
  55. 		if(c.min>10 || (c.min==10 && c.sec!=0)) c.min%=10;
  56.  
  57. 		return c;
  58. 	}
  59. };
  60.  
  61.  
  62.  
  63.  
  64. int main() {
  65. 	int input_1, input_2;
  66. 	while (cin >> input_1 >> input_2){
  67. 		Timer  foo;
  68. 		foo = foo + input_1;
  69. 		cout << foo << endl;
  70. 		foo = input_2 + foo;
  71. 		cout << foo << endl;
  72. 		cout << ++foo << endl;
  73. 		foo = input_2;
  74.  
  75. 		for (int i = input_2; i >= 0; --i) cout << foo-- << endl;
  76. 	}
  77.  
  78. return 0;
  79. }
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin
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200
10
stdout
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03 : 20
03 : 30
03 : 31
00 : 10
00 : 10
00 : 10
00 : 10
00 : 10
00 : 10
00 : 10
00 : 10
00 : 10
00 : 10
00 : 10
https://ideone.com/nXevJY
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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