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  1. #include <iostream>
  2. #include <iterator> 
  3. #include <string>
  4. #include <vector>
  5. #include <memory>
  6. #include <unordered_map>
  7.  
  8. struct Employee {
  9. 	std::string FirstName;
  10. 	std::string LastName;
  11. };
  12.  
  13. typedef std::vector<std::shared_ptr<Employee>> Employees;
  14. typedef std::unordered_map<std::string, Employees>  EmployeeByLookup;
  15.  
  16. std::istream& operator>>(std::istream& is, Employee& e) {
  17. 	return is >> e.FirstName >> e.LastName;
  18. }
  19.  
  20. std::ostream& operator<<(std::ostream& o, const Employee& e) {
  21. 	return o << e.FirstName << " " << e.LastName;
  22. }
  23.  
  24. std::ostream& operator<<(std::ostream& o, const Employees& employees) {
  25. 	o << "[";
  26. 	if (!employees.empty())
  27. 	{
  28. 		for(auto e = employees.cbegin(); e != employees.cend()-1; ++e)
  29. 			o << **e << ", ";
  30. 		o << *(employees.back());
  31. 	}
  32. 	o << "]";
  33. 	return o;
  34. }
  35.  
  36. EmployeeByLookup CreateDepartmentMap() {
  37. 	using std::cin;
  38.  
  39. 	EmployeeByLookup map;
  40. 	while(cin)
  41. 	{
  42. 		std::string department;
  43. 		cin >> department;
  44. 		if (department.empty())
  45. 			break;
  46. 		auto employee = std::make_shared<Employee>();
  47. 		cin >> *employee;
  48. 		map[department].push_back(employee); 
  49. 	}
  50. 	return map;
  51. }
  52.  
  53. int main() {
  54. 	using namespace std;
  55.  
  56. 	EmployeeByLookup departmentMap = CreateDepartmentMap();
  57. 	cout << "All employees" << endl;
  58. 	for (auto& x: departmentMap)
  59.     	cout << "Department: " << x.first << "\n\t" << x.second << std::endl;
  60.  
  61.     cout << "--------------" << endl;
  62. 	string lookFor = "P+0$i";
  63. 	if (departmentMap.find(lookFor) != departmentMap.end()) {
  64. 		cout << "Department \"" << lookFor << "\" has " 
  65. 		     << departmentMap[lookFor].size() << " employees." << endl
  66. 		     << departmentMap[lookFor] << endl;
  67. 	}
  68. 	return 0;
  69. }
  70.  
Success #stdin #stdout 0s 3484KB
comments ()
stdin
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1234 Frank Flinstone
ABCD Bill Williams
1234 Leisure Larry
P+0$i Tom Tommson
P+0$i John Doe
stdout
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All employees
Department: P+0$i
	[Tom Tommson, John Doe]
Department: ABCD
	[Bill Williams]
Department: 1234
	[Frank Flinstone, Leisure Larry]
--------------
Department "P+0$i" has 2 employees.
[Tom Tommson, John Doe]
https://ideone.com/N0c6iW
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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