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  1. #include <iostream>
  2. #include <random>
  3. #include <cstdint>
  4. #include <tuple>
  5. #include <algorithm>
  6.  
  7.  
  8. //	計算機以外の実行を禁ずる。
  9. std::size_t DoOne(std::size_t N, std::size_t C) {
  10. 	std::size_t V = 0;
  11. 	std::size_t Re = N;
  12. 	std::size_t T = 0;
  13.  
  14. 	std::random_device rd;
  15. 	std::mt19937 mt(rd());
  16. 	//std::mt19937 mt;
  17. 	std::uniform_int_distribution<std::size_t> UI(1, 10);
  18. 	do {
  19. 		N = Re;
  20. 		Re = 0;
  21. 		T = 0;
  22. 		for (std::size_t i = 0; i < N; i++) {
  23. 			T = std::max(T,UI(mt));
  24.  
  25. 			if (T >= C) { Re++; }
  26.  
  27. 		}
  28. 		V += T;
  29. 	}while(Re != 0);
  30.  
  31. 	return V;
  32. }
  33.  
  34. int main() {
  35. 	std::uintmax_t V = 0;
  36.  
  37. 	std::size_t DiceCount = 10;
  38. 	std::size_t NumberLimit = 5;
  39. 	std::size_t L = 900000;
  40. 	std::size_t Min = 11*DiceCount;
  41. 	std::size_t Max = 0;
  42. 	for (std::size_t i = 0; i < L; i++) {
  43. 		std::size_t T = DoOne(DiceCount, NumberLimit);
  44. 		V += T;
  45. 		Min = std::min(Min, T);
  46. 		Max = std::max(Max, T);
  47.  
  48. 	}
  49.  
  50. 	std::cout << "Do " << L << " count." << std::endl;
  51. 	std::cout << "Min:" << Min << ',' << "Max:" << Max << std::endl;
  52. 	std::cout << "Average:" << V / (double)L << std::endl;
  53.  
  54. 	return 0;
  55. }
  56.  
Success #stdin #stdout 4.98s 4392KB
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Standard input is empty
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Do 900000 count.
Min:3,Max:497
Average:135.943
https://ideone.com/geZ4qP
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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