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  1. #include <iostream>
  2. #include <cstdlib>
  3. #include <string>
  4. #include <cstdint>
  5. #include <limits>
  6.  
  7. //this result is who's bug??
  8.  
  9. int CountBit(std::int32_t N){
  10. 	int C = 0;
  11.  
  12.  	for (std::size_t i = 0; i < std::numeric_limits<std::int32_t>::digits; i++){
  13. 		if ((N&static_cast<std::int64_t>((1 << i)))>0) C++;
  14. 	}
  15.  
  16. 	return C;
  17. }
  18.  
  19. std::string ltostr(std::int64_t N){
  20. 	std::string str;
  21. 	bool F = false;
  22. 	std::string C = "01";
  23. 	for (size_t i = std::numeric_limits<std::int64_t>::digits+1;i>0; i--){
  24. 		if ((N&static_cast<std::int64_t>(1 << (i-1))) == 0 && F == false) continue;
  25. 		F = true;
  26. 		str += C[(N&static_cast<std::int64_t>(1 << (i-1))) > 0]  ;
  27. 	}
  28.  
  29. 	return str;
  30. }
  31.  
  32. std::string MakeHoge(std::string Bit){
  33. 	char* P = NULL;
  34. 	std::int64_t N =std::strtol(Bit.c_str(), &P, 2);//C99
  35. 	if (*P != '\0') return "Error";
  36. 	std::string R;
  37. 	for (std::int64_t i = N+1; i < std::numeric_limits<std::int64_t>::max(); i++)
  38. 	{
  39. 			//R = ltostr(N);//selfmade
  40. 		if (CountBit(i) == 3){
  41. 			R = ltostr(i);//selfmade
  42. 			break;
  43. 		}
  44. 	}
  45. 	return R;
  46. }
  47.  
  48. bool Show(std::string P, std::string S){
  49. 	std::cout << P << " -> " << S << std::endl;
  50.  
  51. 	return true;
  52.  
  53. }
  54.  
  55. int main(){
  56. 	std::int64_t MagicWord = 0;
  57. 	std::string P;
  58. 	std::string S;
  59.  
  60. 	P = "111";
  61. 	S = MakeHoge(P);
  62. 	Show(P, S);
  63.  
  64. 	P = "1110";
  65. 	S = MakeHoge(P);
  66. 	Show(P, S);
  67.  
  68. 	P = "110100";
  69. 	S = MakeHoge(P);
  70. 	Show(P, S);
  71. 	return 0;
  72. }
  73.  
Success #stdin #stdout 0s 3476KB
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stdin
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Standard input is empty
stdout
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111 -> 101100000000000000000000000000001011
1110 -> 1001100000000000000000000000000010011
110100 -> 11100000000000000000000000000000111000
https://ideone.com/CNUaCe
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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