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  1. #include <cstdio>
  2. using namespace std;
  3.  
  4. class time
  5. {
  6. public:
  7. 	int minutes;
  8. 	time(int h, int min) : minutes(0)
  9. 	{
  10. 		minutes += h * 60 * 11; //to remove non int numbers such as 12/11 I multiply them by 11 and I'am storing everything in minutes
  11. 		minutes += min * 11;
  12. 	}
  13.  
  14. 	time(time a, time b)
  15. 	{
  16. 		minutes = b.minutes - a.minutes;
  17. 	}
  18.  
  19. 	bool operator >= (time obj)
  20. 	{
  21. 		if (this->minutes >= obj.minutes) return true;
  22. 		return false;
  23. 	}
  24.  
  25. 	void add(int a)
  26. 	{
  27. 		minutes += a;
  28. 	}
  29.  
  30. 	void showTime() //
  31. 	{
  32. 	    int hours = minutes/60/11;
  33. 	    int minits = (minutes - hours*60*11) / 11;
  34. 	    printf("%i:%i\n", hours,minits);
  35. 	}
  36.  
  37. };
  38.  
  39. int solve(time t1, time t2) //t2 is the end time
  40. {
  41. 	time zero(0, 0);
  42. 	const int interval = 12 * 60; //not 12/11 becouse I multiply everything by 11
  43. 	while (t1 >= zero) zero.add(interval);
  44. 	int passCount = 0;
  45. 	while (t2 >= zero)
  46. 	{
  47. 		passCount++;
  48. 		zero.add(interval);
  49. 	}
  50. 	return passCount;
  51. }
  52.  
  53. void abc() // this function is just to see if everything is working. Passing times are rounded
  54. {
  55.     time zero(0, 0);
  56.     time end(24,00);
  57. 	const int interval = 12 * 60;
  58.     do
  59.     {
  60.         zero.showTime();
  61.         zero.add(interval);
  62.     }while(end >= zero);
  63. }
  64.  
  65. int main()
  66. {
  67.     //abc();
  68. 	unsigned long long n;
  69. 	scanf("%llu", &n);
  70. 	while (n--)
  71. 	{
  72. 		int a, b;
  73. 		scanf("%i:%i", &a, &b);
  74. 		time time1(a, b);
  75. 		scanf("%i:%i", &a, &b);
  76. 		time time2(a, b);
  77. 		printf("%i", solve(time1, time2));
  78. 		if(n>0) printf(("\n"));
  79. 	}
  80. 	return 0;
  81. }
  82.  
Success #stdin #stdout 0s 3464KB
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https://ideone.com/V40wh8
language:
C++ 4.3.2 (gcc-4.3.2)
created:
7 years ago
visibility:
secret

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