Rezumat problemă

Progresie3

#2812

Se dă un șir de cel mult 106 numere naturale din intervalul [0,103]. Se cere să se verifice dacă există un număr natural r, astfel încât toate numerele distincte din șir să poată fi rearanjate, pentru a forma o progresie aritmetică de rație r. Se afișează numărul r, sau mesajul NU, dacă nu există un astfel de număr.

Subiect Bacalaureat 2017, sesiune august-septembrie

Fișiere Candale Silviu (silviu) medie

Clasa 9 Tablouri unidimensionale (vectori) Vectori caracteristici / de frecventa Bacalaureat Bacalaureat 2017 Progresie aritmetică

Rezolvă

Detalii

Problema	Progresie3	Operații I/O	progresie3.in/progresie3.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64800851	Utilizator	Gutu Ioana (Gutuioana)
Fișier	progresie3.cpp	Dimensiune	429 B
Data încărcării	02 Iunie 2026, 10:51	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

progresie3.cpp:4:1: error: ‘ifsream’ does not name a type
    4 | ifsream cin("progresie3.in");
      | ^~~~~~~
progresie3.cpp:6:15: error: expected initializer before ‘fr’
    6 | int n,i,j,r,v fr[1001],x,bool,ok=1;
      |               ^~
progresie3.cpp: In function ‘int main()’:
progresie3.cpp:8:15: error: ‘x’ was not declared in this scope
    8 | { while (cin>>x) fr[x]++;
      |               ^
progresie3.cpp:8:18: error: ‘fr’ was not declared in this scope; did you mean ‘r’?
    8 | { while (cin>>x) fr[x]++;
      |                  ^~
      |                  r
progresie3.cpp:10:18: error: ‘fr’ was not declared in this scope; did you mean ‘r’?
   10 | for(i=0;i<=1007&&fr[[i]==0];i++)
      |                  ^~
      |                  r
progresie3.cpp:10:20: error: two consecutive ‘[’ shall only introduce an attribute before ‘[’ token
   10 | for(i=0;i<=1007&&fr[[i]==0];i++)
      |                    ^
progresie3.cpp:10:20: error: expected ‘;’ before ‘[’ token
   10 | for(i=0;i<=1007&&fr[[i]==0];i++)
      |                    ^
      |                    ;
progresie3.cpp:10:21: error: expected identifier before ‘[’ token
   10 | for(i=0;i<=1007&&fr[[i]==0];i++)
      |                     ^
progresie3.cpp: In lambda function:
progresie3.cpp:10:28: error: expected ‘{’ before ‘;’ token
   10 | for(i=0;i<=1007&&fr[[i]==0];i++)
      |                            ^
progresie3.cpp: In function ‘int main()’:
progresie3.cpp:10:28: error: expected ‘)’ before ‘;’ token
   10 | for(i=0;i<=1007&&fr[[i]==0];i++)
      |    ~                       ^
      |                            )
progresie3.cpp:10:1: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   10 | for(i=0;i<=1007&&fr[[i]==0];i++)
      | ^~~
progresie3.cpp:10:29: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
   10 | for(i=0;i<=1007&&fr[[i]==0];i++)
      |                             ^
progresie3.cpp:10:32: error: expected ‘;’ before ‘)’ token
   10 | for(i=0;i<=1007&&fr[[i]==0];i++)
      |                                ^
      |                                ;
progresie3.cpp:12:7: error: ‘fr’ was not declared in this scope; did you mean ‘r’?
   12 | while(fr[v]==0)i++;
      |       ^~
      |       r
progresie3.cpp:12:10: error: ‘v’ was not declared in this scope
   12 | while(fr[v]==0)i++;
      |          ^
progresie3.cpp:13:5: error: ‘x’ was not declared in this scope
   13 | r=i-x;x=1;i++; cout<<r<<endl;
      |     ^
progresie3.cpp:13:16: error: reference to ‘cout’ is ambiguous
   13 | r=i-x;x=1;i++; cout<<r<<endl;
      |                ^~~~
In file included from progresie3.cpp:1:
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
progresie3.cpp:5:10: note:                 ‘std::ofstream cout’
    5 | ofstream cout("progresie3.out");
      |          ^~~~
progresie3.cpp:14:24: error: ‘fr’ was not declared in this scope; did you mean ‘r’?
   14 | while(i<=1007){ while (fr[i]==0) i++;
      |                        ^~
      |                        r
progresie3.cpp:15:12: error: reference to ‘cout’ is ambiguous
   15 | if(i-x!=r){cout<<"NU";i=1007;ok=0;}
      |            ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
progresie3.cpp:5:10: note:                 ‘std::ofstream cout’
    5 | ofstream cout("progresie3.out");
      |          ^~~~
progresie3.cpp:15:30: error: ‘ok’ was not declared in this scope
   15 | if(i-x!=r){cout<<"NU";i=1007;ok=0;}
      |                              ^~
progresie3.cpp:17:4: error: ‘ok’ was not declared in this scope
   17 | if(ok)
      |    ^~
progresie3.cpp:18:1: error: reference to ‘cout’ is ambiguous
   18 | cout<<r;
      | ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
progresie3.cpp:5:10: note:                 ‘std::ofstream cout’
    5 | ofstream cout("progresie3.out");
      |          ^~~~

Cum funcționează evaluarea?