Rezumat problemă

expresie9

#2185

Camelia este pasionată de operații aritmetice. Într-o zi, s-a gândit să evalueze valoarea unei expresii ce este formată din litere mici şi operatorii: +, <, >. În expresie, fiecare literă va fi înlocuită cu numărul de ordine pe care îl are în alfabet (a=1, b=2 etc.). Prietena ei, Mădălina i-a pregătit Cameliei mai multe expresii de acest tip, pe care să le evalueze și apoi să determine care este numărul cel mai mare, obținut dintr-un șir de litere, din expresiile date.

Scrieţi un program care determină pentru un şir de n expresii, formate din litere mici şi operatorii: +, <, >, două cerinţe:
-cerinţa 1: să determine numărul cel mai mare, obținut dintr-un șir de litere, din expresiile date;
-cerinţa 2: să evalueze fiecare expresie și să afișeze valoarea ei.

Olimpiada Municipala de Informatica, Iasi, 2017

Fișiere Pracsiu Dan (dnprx) Silvia Grecu concurs

Clasa 10 Şiruri de caractere Probleme diverse Numere mari

Rezolvă

Detalii

Problema	expresie9	Operații I/O	expresie9.in/expresie9.out
Limita timp	1 secunde	Limita memorie	Total: 16 MB / Stivă 8 MB
Id soluție	#56274417	Utilizator	Stoleri Viorel-Paul (Viorel_Paul)
Fișier	expresie9.cpp	Dimensiune	3.04 KB
Data încărcării	12 Februarie 2025, 11:54	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

expresie9.cpp:5:13: error: variable 'std::ifstream cin' has initializer but incomplete type
 ifstream cin("expresie9.in");

             ^
expresie9.cpp:6:14: error: variable 'std::ofstream cout' has initializer but incomplete type
 ofstream cout("expresie9.out");

              ^
expresie9.cpp: In function 'void afisare(nrmare&)':
expresie9.cpp:60:9: error: reference to 'cout' is ambiguous
         cout<<A.v[i];

         ^
expresie9.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("expresie9.out");

          ^
In file included from expresie9.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
expresie9.cpp: In function 'int main()':
expresie9.cpp:80:5: error: reference to 'cin' is ambiguous
     cin>>cer>>n;

     ^
expresie9.cpp:5:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("expresie9.in");

          ^
In file included from expresie9.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
expresie9.cpp:88:9: error: reference to 'cin' is ambiguous
         cin>>expresie;

         ^
expresie9.cpp:5:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("expresie9.in");

          ^
In file included from expresie9.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
expresie9.cpp:89:9: error: reference to 'cin' is ambiguous
         cin.get();

         ^
expresie9.cpp:5:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("expresie9.in");

          ^
In file included from expresie9.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
expresie9.cpp:90:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i=0; i<strlen(expresie); i++) {

                                        ^
expresie9.cpp:126:21: error: reference to 'cout' is ambiguous
                     cout<<1;

                     ^
expresie9.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("expresie9.out");

          ^
In file included from expresie9.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
expresie9.cpp:127:22: error: reference to 'cout' is ambiguous
                 else cout<<0;

                      ^
expresie9.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("expresie9.out");

          ^
In file included from expresie9.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
expresie9.cpp:131:21: error: reference to 'cout' is ambiguous
                     cout<<1;

                     ^
expresie9.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("expresie9.out");

          ^
In file included from expresie9.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
expresie9.cpp:132:22: error: reference to 'cout' is ambiguous
                 else cout<<0;

                      ^
expresie9.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("expresie9.out");

          ^
In file included from expresie9.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
expresie9.cpp:136:13: error: reference to 'cout' is ambiguous
             cout<<"\n";

             ^
expresie9.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("expresie9.out");

          ^
In file included from expresie9.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^

Cum funcționează evaluarea?