Rezumat problemă

plusminus

#1357

Fie n un număr natural.
Să se determine toate posibilitățile de alegere a semnelor + și - pentru care
n = (+|-) 12 + (+|-) 22 + ... + (+|-) n2

Fișiere Minca Carmen (carmen) Carmen Minca ușoară

Clasa 11 Backtracking Probleme diverse

Rezolvă

Detalii

Problema	plusminus	Operații I/O	plusminus.in/plusminus.out
Limita timp	0.2 secunde	Limita memorie	Total: 2 MB / Stivă 2 MB
Id soluție	#62717046	Utilizator	Benedek József (BenedekJozsef)
Fișier	plusminus.cpp	Dimensiune	1.11 KB
Data încărcării	30 Ianuarie 2026, 13:58	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

plusminus.cpp: In function 'int main()':
plusminus.cpp:29:37: error: expected identifier before numeric constant
             cin.getline (szavak[i],[100]);

                                     ^
plusminus.cpp: In lambda function:
plusminus.cpp:29:41: error: expected '{' before ')' token
             cin.getline (szavak[i],[100]);

                                         ^
plusminus.cpp: In function 'int main()':
plusminus.cpp:29:41: error: invalid user-defined conversion from 'main()::__lambda4' to 'std::streamsize {aka int}' [-fpermissive]
plusminus.cpp:29:40: note: candidate is: main()::__lambda4::operator void (*)()() const <near match>
             cin.getline (szavak[i],[100]);

                                        ^
plusminus.cpp:29:40: note:   no known conversion for implicit 'this' parameter from 'void (*)()' to 'std::streamsize {aka int}'
plusminus.cpp:30:25: error: no matching function for call to 'strstr(char [100])'
     if (strstr(szavak[i]) !=NULL)

                         ^
plusminus.cpp:30:25: note: candidates are:
In file included from /usr/include/c++/4.8/cstring:42:0,
                 from plusminus.cpp:3:
/usr/include/string.h:329:1: note: char* strstr(char*, const char*)
 strstr (char *__haystack, const char *__needle) __THROW
 ^
/usr/include/string.h:329:1: note:   candidate expects 2 arguments, 1 provided
/usr/include/string.h:335:1: note: const char* strstr(const char*, const char*)
 strstr (const char *__haystack, const char *__needle) __THROW
 ^
/usr/include/string.h:335:1: note:   candidate expects 2 arguments, 1 provided
plusminus.cpp:33:39: error: invalid conversion from 'char' to 'const char*' [-fpermissive]
            int szavakhossz=strlen((s[i]));

                                       ^
In file included from /usr/include/c++/4.8/cstring:42:0,
                 from plusminus.cpp:3:
/usr/include/string.h:399:15: error:   initializing argument 1 of 'size_t strlen(const char*)' [-fpermissive]
 extern size_t strlen (const char *__s)
               ^
plusminus.cpp:34:38: error: invalid types 'int[int]' for array subscript
         for (int j =1;s<szavakhossz[i],j++)

                                      ^
plusminus.cpp:34:43: error: expected ';' before ')' token
         for (int j =1;s<szavakhossz[i],j++)

                                           ^
plusminus.cpp:36:48: error: invalid types 'char[int]' for array subscript
                   if (s[i][szavakhossz-khossz+j]!=s[j])

                                                ^

Cum funcționează evaluarea?