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  1. #include <iostream>
  2. #include <iomanip>
  3. #include <map>
  4. #include <set>
  5. #include <cmath>
  6. #include <vector>
  7. #include <climits>
  8. #include <string>
  9. #include <algorithm>
  10. #include <sstream>
  11. #include <numeric>
  12. using namespace std;
  13.  
  14. vector<string> split(string haystack, string needle) {
  15.     vector<string> result;
  16.     int startPos = 0;
  17.     int foundPos = haystack.find(needle, startPos);
  18.     while (foundPos != string::npos) {
  19.         int count = foundPos - startPos;
  20.         string token = haystack.substr(startPos, count);
  21.         if (!token.empty()) {
  22.             result.push_back(token);
  23.         }
  24.         startPos = foundPos + needle.length();
  25.         foundPos = haystack.find(needle, startPos);
  26.     }
  27.     string token = haystack.substr(startPos, haystack.length() - startPos);
  28.     if (!token.empty()) {
  29.         result.push_back(token);
  30.     }
  31.     return result;
  32. }
  33.  
  34. string nameConvert(const string& name) {
  35.     const string DELIMITER = " ";
  36.     stringstream builder;
  37.     auto parts = split(name, DELIMITER);
  38.     for (auto part : parts) {
  39.         part[0] = toupper(part[0]);
  40.         transform(part.begin() + 1, part.end(), part.begin() + 1, ::tolower);
  41.         builder << part << DELIMITER;
  42.     }
  43.     return builder.str();
  44. }
  45.  
  46. string dateConvert(const string& date) {
  47.     const string DELIMITER = "/";
  48.     stringstream builder;
  49.     auto parts = split(date, DELIMITER);
  50.     builder << setw(2) << setfill('0') << parts[0] << DELIMITER;
  51.     builder << setw(2) << setfill('0') << parts[1] << DELIMITER;
  52.     builder << parts[2];
  53.     return builder.str();
  54. }
  55.  
  56. class TeacherIDGenerator {
  57. private:
  58.     inline static int index = 1;
  59.     inline static const string PREFIX = "GV";
  60.  
  61. public:
  62.     static string next() {
  63.         stringstream builder;
  64.         builder << PREFIX << setw(2) << setfill('0') << index;
  65.         index++;
  66.         return builder.str();
  67.     }
  68. };
  69.  
  70. class Teacher {
  71. private:
  72.     string id, name, major;
  73. public:
  74.     Teacher() : name(""), major("") {
  75.         id = TeacherIDGenerator::next();
  76.     };
  77.     Teacher(string name, string major) : name(name), major(major) {
  78.         id = TeacherIDGenerator::next();
  79.     };
  80.  
  81. public:
  82.     void setName(string name) { this->name = name; }
  83.     void setMajor(string major) { this->major = major; }
  84.  
  85. public:
  86.     string toString() {
  87.         stringstream builder;
  88.         builder << id << " " << name << " ";
  89.  
  90.         auto parts = split(major, " ");
  91.         for (int i = 0;i < parts.size();i++) {
  92.             builder << (char) toupper(parts[i][0]);
  93.         }
  94.         return builder.str();
  95.     }
  96. public:
  97.     bool operator < (const Teacher& other) const {
  98.  
  99.         string first_name = split(name, " ").back();
  100.         string other_name = split(other.name, " ").back();
  101.  
  102.         if (first_name != other_name) {
  103.             return first_name < other_name;
  104.         }
  105.         return id < other.id;
  106.     }
  107. };
  108.  
  109. class TeacherFromKeyboardProvider {
  110. public:
  111.     static Teacher next() {
  112.         string buffer;
  113.         Teacher t;
  114.  
  115.         getline(cin, buffer);
  116.         t.setName(buffer);
  117.  
  118.         getline(cin, buffer);
  119.         t.setMajor(buffer);
  120.  
  121.         return t;
  122.     }
  123. };
  124.  
  125. int main() {
  126.     ios_base::sync_with_stdio(false);
  127.     cin.tie(NULL);
  128.     int n;cin >> n;
  129.     cin.ignore();
  130.     vector<Teacher> teachers;
  131.     for (int i = 0;i < n;i++) {
  132.         Teacher t = TeacherFromKeyboardProvider::next();
  133.         teachers.push_back(t);
  134.     }
  135.  
  136.     sort(teachers.begin(), teachers.end());
  137.  
  138.     for (auto teacher : teachers) {
  139.         cout << teacher.toString() << endl;
  140.     }
  141.     return 0;
  142. }
  143.  
  144.  
Success #stdin #stdout 0s 5320KB
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stdout 
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https://ideone.com/fPcrDb
language:
C++ (gcc 8.3)
created:
6 days ago
visibility:
public

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