#243
Se consideră şirul 1, 2,1, 3,2,1, 4,3,2,1, ..., în care prima grupă este formată din numărul 1, a doua grupă este formată din numerele 2,1, …, a k-a grupă este formată din numerele k,k-1, ...,2,1.
Pentru un număr natural dat n, să se determine al n-lea termen din şir.
| Problema | sir1 | Operații I/O |
tastatură/ecran
|
|---|---|---|---|
| Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
| Id soluție | #64673560 | Utilizator | |
| Fișier | sir1.cpp | Dimensiune | 236 B |
| Data încărcării | 21 Mai 2026, 19:41 | Scor/rezultat | Eroare de compilare |
sir1.cpp:1:1: error: invalid digit "9" in octal constant 1 | 09q#include<iostream> | ^~~ sir1.cpp:1:4: error: stray ‘#’ in program 1 | 09q#include<iostream> | ^ sir1.cpp:1:1: error: expected unqualified-id before numeric constant 1 | 09q#include<iostream> | ^~~ In file included from /usr/include/c++/13/cmath:45, from sir1.cpp:2: /usr/include/c++/13/ext/type_traits.h:164:35: error: ‘constexpr const bool __gnu_cxx::__is_null_pointer’ redeclared as different kind of entity 164 | __is_null_pointer(std::nullptr_t) | ^ /usr/include/c++/13/ext/type_traits.h:159:5: note: previous declaration ‘template<class _Type> constexpr bool __gnu_cxx::__is_null_pointer(_Type)’ 159 | __is_null_pointer(_Type) | ^~~~~~~~~~~~~~~~~ /usr/include/c++/13/ext/type_traits.h:164:26: error: ‘nullptr_t’ is not a member of ‘std’ 164 | __is_null_pointer(std::nullptr_t) | ^~~~~~~~~ sir1.cpp: In function ‘int main()’: sir1.cpp:8:5: error: ‘cin’ was not declared in this scope 8 | cin>>n; | ^~~ sir1.cpp:3:1: note: ‘std::cin’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’? 2 | #include<cmath> +++ |+#include <iostream> 3 | sir1.cpp:9:23: error: ‘q’ was not declared in this scope 9 | k=sqrt(2*n);k=int(q); | ^ sir1.cpp:11:9: error: ‘cout’ was not declared in this scope 11 | cout<<1; | ^~~~ sir1.cpp:11:9: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’? sir1.cpp:13:9: error: ‘cout’ was not declared in this scope 13 | cout<<k-n%k+1; | ^~~~ sir1.cpp:13:9: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema sir1 face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
Suma punctajelor acordate pe testele utilizate pentru verificare este 100. Astfel, soluția ta poate obține cel mult 100 de puncte, caz în care se poate considera corectă.