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  1. #include <iostream>
  2. #include <exception>
  3. #include <string>
  4. #include <ctime>
  5. #include <sstream>
  6. #include <system_error>
  7. #include <set>
  8. #include <map>
  9. using namespace std;
  10.  
  11.  
  12. class Date {
  13.  
  14. public:
  15.  
  16.     Date(){}
  17.  
  18.     Date(long int y, int m, int d){
  19.  
  20.        string string_y = to_string(y);
  21.        string string_m = to_string(m);
  22.        string string_d = to_string(d);
  23.  
  24.        year = y;
  25.        month = m;
  26.        day = d;
  27.  
  28.        string zero_y="";
  29.  
  30.        if(string_y.size()>=4){
  31.        } else if(string_y.size()<4 && year>0){
  32.        string zeros_y((4-string_y.size()), '0');
  33.        zero_y=zeros_y;
  34.        }
  35.  
  36.        string zeros_m((2-string_m.size()), '0');
  37.        string zeros_d((2-string_d.size()), '0');
  38.  
  39.        data = zero_y + string_y + "-" + zeros_m + string_m + "-" + zeros_d + string_d;
  40.  
  41.  
  42.     }
  43.  
  44.   int GetYear() const{
  45.     return year;
  46.   }
  47.   int GetMonth() const{
  48.     return month;
  49.   }
  50.   int GetDay() const{
  51.     return day;
  52.   }
  53.  
  54.   string GetDate() const{
  55.     return data;
  56.   }
  57.  
  58.  
  59. private:
  60.  
  61.     long int year;
  62.     int month;
  63.     int day;
  64.     string data;
  65. };
  66.  
  67. bool operator<(const Date& lhs, const Date& rhs){
  68.     if(lhs.GetYear() < rhs.GetYear()){
  69.         return true;
  70.     } else if(lhs.GetYear()==rhs.GetYear() && lhs.GetMonth() < rhs.GetMonth()){
  71.         return true;
  72.     } else if(lhs.GetYear()==rhs.GetYear() && lhs.GetMonth() == rhs.GetMonth() && lhs.GetDay()<rhs.GetDay()){
  73.         return true;
  74.     } else return false;
  75.  
  76. }
  77.  
  78. class Database {
  79.  
  80. public:
  81.  
  82.   Database(){
  83.     basa;
  84.   }
  85.  
  86.   void AddEvent(const Date& date, const string& event){
  87.  
  88.     basa[date].insert(event);
  89.  
  90.   }
  91.  
  92.   bool DeleteEvent(const Date& date, const string& event){
  93.  
  94.      set <string>::iterator it;
  95.  
  96.      if(basa.count(date)>0){
  97.      it = basa.at(date).find(event);
  98.      if(basa.at(date).empty() || it==basa.at(date).end()){
  99.      return false;
  100.      } else {
  101.      basa.at(date).erase(basa.at(date).find(event));
  102.      if(basa.at(date).empty()) basa.erase(date);
  103.      return true;
  104.      }
  105.    } else return false;
  106.  
  107. }
  108.  
  109.   int  DeleteDate(const Date& date){
  110.  
  111.      int N;
  112.  
  113.      if(basa.count(date)>0){
  114.      N = basa.at(date).size();
  115.      basa.erase(date);
  116.      } else N=0;
  117.  
  118.      return N;
  119.  
  120.   }
  121.  
  122.   void Find(const Date& date) {
  123.  
  124.     if(basa.count(date)>0){
  125.     for(const auto& item: basa.at(date)){
  126.         cout<<item<<endl;
  127.      }
  128.     }
  129.   }
  130.  
  131.  
  132.   void Print() const{
  133.  
  134.     Date dt;
  135.  
  136.     int negat_num=0;
  137.  
  138.     for(const auto& it:basa){
  139.         if(it.first.GetYear()<0){
  140.             negat_num++;
  141.         }
  142.     }
  143.  
  144.     if(basa.begin()->first.GetYear()<0){  //если первый год меньше 0
  145.      for(const auto& it : basa){
  146.      if(it.first.GetYear()<0){
  147.         cout<<"";
  148.      }
  149.      else if(it.first.GetYear()>=0){
  150.         string datik = it.first.GetDate();
  151.         for(const auto& item: it.second){
  152.             cout<<datik<<" "<<item<<endl;
  153.         }
  154.      }
  155.      }
  156.     }
  157.  
  158.     else{   //Если первый год больше 0
  159.     for(const auto& it: basa){
  160.     for(const auto& item : it.second){
  161.        string datik = it.first.GetDate();
  162.        cout<<datik<<" "<<item<<endl;
  163.        }
  164.        }
  165.    }
  166. }
  167.  
  168.   void Clear() {
  169.     basa.clear();
  170.   }
  171.  
  172. private:
  173.  
  174.   map <Date, set <string> > basa;
  175.  
  176.  
  177.  
  178.  
  179. };
  180.  
  181.  
  182. ostream& operator<<(ostream& stream, const Date& d){
  183.     stream<<d.GetDate();
  184.     return stream;
  185. }
  186.  
  187. istream& operator>>(istream& ss, Date& d){
  188.  
  189.  
  190.     long int year;
  191.     int month, day;
  192. 	char def1, def2;
  193.  
  194.     string wrongdate;
  195.     ss>>wrongdate;
  196.  
  197.     stringstream stream(wrongdate);
  198.  
  199.  
  200.  
  201.     int indicator=0;
  202.  
  203.     if(!(stream.rdbuf()->in_avail()==0)){
  204.     stream>>year;
  205.     stream>>def1;
  206.     if(def1!='-'){
  207.         indicator=2;
  208.       	stringstream wformat;
  209.      	wformat<<"Wrong date format: "<<wrongdate<<endl;
  210.         throw runtime_error(wformat.str());
  211.     }
  212.     else if(def1=='-'){
  213.     stream>>month;
  214.         if(month==0 && to_string(month)!="0"){
  215.         indicator=2;
  216.       	stringstream wformat;
  217.      	wformat<<"Wrong date format: "<<wrongdate<<endl;
  218.         throw runtime_error(wformat.str());
  219.         } else {
  220.         stream>>def2;
  221.         if(def2!='-'){
  222.             indicator=2;
  223.             stringstream wformat;
  224.             wformat<<"Wrong date format: "<<wrongdate<<endl;
  225.             throw runtime_error(wformat.str());
  226.         } else if(def2=='-'){
  227.             stream>>day;
  228.             if(day==0 && to_string(day)!="0"){
  229.             indicator=2;
  230.             stringstream wformat;
  231.             wformat<<"Wrong date format: "<<wrongdate<<endl;
  232.             throw runtime_error(wformat.str());
  233.         } if(!stream.eof()){
  234.             indicator=2;
  235.             stringstream wformat;
  236.             wformat<<"Wrong date format: "<<wrongdate<<endl;
  237.             throw runtime_error(wformat.str());
  238.         }
  239.  
  240.     }}} indicator=1; } else {}
  241.  
  242.     if(indicator==1){
  243.     if(month>12 || month<1){
  244.         stringstream ss;
  245.         ss<<"Month value is invalid: "<<to_string(month)<<endl;
  246.         throw runtime_error(ss.str());
  247.     } else if(day>31 || day<1){
  248.         stringstream ss;
  249.         ss<<"Day value is invalid: "<<to_string(day)<<endl;
  250.         throw runtime_error(ss.str());
  251.     } else d = {year, month, day};
  252.  
  253.     } else if(indicator==2){}
  254.  
  255.     if(indicator==1 || indicator==2) return stream;
  256.  
  257. }
  258.  
  259.  
  260. int main() {
  261.   Database db;
  262.   string event;
  263.  
  264.   map <string, int> commands = {{"Add", 1}, {"Del", 2}, {"Find", 3}, {"Print", 4}};
  265.  
  266.   string command;
  267.   string dothis;
  268.  
  269.   Date dt;
  270.   db.Clear();
  271.  
  272.   while (getline(cin, command)) {
  273.  
  274.      stringstream ss(command);
  275.      if(command!=""){
  276.      ss>>dothis;
  277.      ss.ignore(1);
  278.  
  279.       switch(commands[dothis]) {
  280.       case 1:
  281.          try{
  282.          ss>>dt;
  283.          ss.ignore(1);
  284.          ss>>event;
  285.          db.AddEvent(dt, event);
  286.          } catch (exception& ex){
  287.          cout<<ex.what();
  288.          }
  289.          break;
  290.       case 2:
  291.          if(!(ss.rdbuf()->in_avail())==0){
  292.          try{
  293.          ss>>dt;
  294.          ss.ignore(1);
  295.          if(ss.eof()){
  296.          int N=db.DeleteDate(dt);
  297.          cout<<"Deleted "<<N<<" events"<<endl;
  298.          } else {
  299.          ss>>event;
  300.          if(db.DeleteEvent(dt, event)==true){
  301.          cout<<"Deleted successfully"<<endl;
  302.          }
  303.          else cout<<"Event not found"<<endl;
  304.          }
  305.  
  306.          } catch (exception& ex){
  307.          cout<<ex.what();
  308.          }} else cout<<"Deleted 0 events"<<endl;
  309.          break;
  310.       case 3:
  311.          try{
  312.          ss>>dt;
  313.          db.Find(dt);
  314.          } catch (exception& ex){
  315.          cout<<ex.what();
  316.          }
  317.          break;
  318.       case 4:
  319.          db.Print();
  320.          break;
  321.      default :
  322.          {
  323.           if(dothis!=""){
  324.           cout << "Unknown command: "<<dothis<<endl;
  325.           } else {
  326.           break;
  327.           };
  328.       }
  329.  
  330.     }
  331.      }
  332.   }
  333.  
  334.  
  335.   return 0;
  336. }
Success #stdin #stdout 0s 4284KB
comments (?)
stdin
copy 
Add 1-1-1 t1
Del 12-12-12
Print
Add 1-0-1 t1
stdout
copy 
Deleted 0 events
0001-01-01 t1
Month value is invalid: 0
https://ideone.com/a4f4sS
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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