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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4. #include <locale>
  5.  
  6. using namespace std;
  7.  
  8. struct Substance// структура Жидкости
  9. {
  10.     string name;
  11.     double d;
  12. };
  13.  
  14. int main() {
  15. 	//setlocale(LC_ALL, "Russian");
  16. 	std::locale::global(std::locale());
  17.  
  18. 	Substance Substances [30] = {
  19. 				{ "Voda", 1.00 }, // Жидкости
  20. 				{ "Kerosin", 0.82 },
  21. 				{ "Morskaya voda", 1.03 },
  22. 				{ "Spirt", 0.80 },
  23. 				{ "Rtut", 13.60 },
  24. 				{ "Bensin", 0.74 },
  25. 				{ "Maslo podsoln", 0.93 },
  26. 				{ "Aceton", 0.79 },
  27. 				{ "Efir", 0.71 },
  28. 				{ "Neft", 0.80 },
  29. 				{ "Azot", 0.00125 }, // Газы
  30. 				{ "Kislorod", 0.001429 },
  31. 				{ "Vodorod", 0.00009 },
  32. 				{ "Uglekisly gas", 0.00198 },
  33. 				{ "Metan", 0.000717 },
  34. 				{ "Gely", 0.00018 },
  35. 				{ "Prirodny gas", 0.0008 },
  36. 				{ "Ugarny gas", 0.00125 },
  37. 				{ "Xlor", 0.00321 },
  38. 				{ "Aluminy", 2.7 }, // Твердые вещества
  39. 				{ "Zoloto", 19.3 },
  40. 				{ "Svinec", 11.3 },
  41. 				{ "Serebro", 10.5 },
  42. 				{ "Olovo", 7.3 },
  43. 				{ "Stal", 7.8  },
  44. 				{ "Led", 0.90 },
  45. 				{ "Parafin", 0.90 },
  46. 				{ "Dub", 0.70 },
  47. 				{ "Sosna", 0.40 }
  48. 	};
  49.  
  50. 	{
  51. 		string str;
  52. 		getline (cin, str);
  53. 		auto sub = std::find_if(begin(Substances), end(Substances),
  54. 				[str](const Substance &s){ return s.name == str; }
  55. 		);
  56. 		if(sub == end(Substances)) {
  57. 			cout << str << " не найдено" << endl;
  58. 		}
  59. 		else {
  60. 			cout << "Плотность: " << sub->d << " г/см.куб" << endl;
  61. 		}
  62. 	}
  63.  
  64. 	{
  65. 		char i;
  66. 		int a, b;
  67. 		cin >> a >> i >> b;
  68.  
  69. 		if(i == '/') {
  70. 			if (b != 0) {
  71. 				float d = static_cast<float>(a)/static_cast<float>(b);
  72. 				cout << a << " / " << b << " = " << d << endl;
  73. 				auto sub = std::find_if(begin(Substances), end(Substances),
  74. 						[d](const Substance &s){ return s.d == d; }
  75. 				);
  76. 				if(sub == end(Substances)) {
  77. 					cout << d << " не найдено" << endl;
  78. 				}
  79. 				else {
  80. 					cout << "Найдено: " << sub->name << endl;
  81. 				}
  82. 			}
  83. 		}
  84. 		else {
  85. 			cout << "Знак в формуле не верен" << endl;
  86. 		}
  87. 	}
  88. 	return 0;
  89. }
Success #stdin #stdout 0s 3464KB
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stdin
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Voda
1 / 1
stdout
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Плотность: 1 г/см.куб
1 / 1 = 1
Найдено: Voda
https://ideone.com/m33ec4
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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