Rezumat problemă

abk1k2

#3676

Se dau patru numere naturale a, b, k1, k2. Determinați numărul de submulțimi formate din două elemente
numere naturale x și y, cu x și y cuprinse între a și b, astfel încât cel mai mare divizor comun al lui x și y să fie multiplu de k1 sau multiplu de k2.

Concursul Național Info Pro, Etapa II

Fișiere Lorintz Alexandru (Alex_tz307) Ionel-Vasile Piț-Rada concurs

Clasa 9 Probleme diverse Probleme diverse Principiul includerii și excluderii Algoritmul lui Euclid

Rezolvă

Detalii

Problema	abk1k2	Operații I/O	abk1k2.in/abk1k2.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#62915594	Utilizator	Dima Calinovschi (gigi444444444)
Fișier	abk1k2.cpp	Dimensiune	750 B
Data încărcării	06 Februarie 2026, 10:25	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

abk1k2.cpp:2:7: error: expected nested-name-specifier before 'namepace'
 using namepace std;

       ^
abk1k2.cpp:2:7: error: 'namepace' has not been declared
abk1k2.cpp:2:16: error: expected ';' before 'std'
 using namepace std;

                ^
abk1k2.cpp:2:16: error: 'std' does not name a type
abk1k2.cpp: In function 'll gcd(ll, ll)':
abk1k2.cpp:7:18: error: 'swap' was not declared in this scope
         swap(x, y);

                  ^
abk1k2.cpp:7:18: note: suggested alternatives:
In file included from /usr/include/c++/4.8/unordered_set:48:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:116,
                 from abk1k2.cpp:1:
/usr/include/c++/4.8/bits/unordered_set.h:1265:5: note:   'std::swap'
     swap(unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x,
     ^
In file included from /usr/include/c++/4.8/exception:152:0,
                 from /usr/include/c++/4.8/ios:39,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from abk1k2.cpp:1:
/usr/include/c++/4.8/bits/exception_ptr.h:160:5: note:   'std::__exception_ptr::swap'
     swap(exception_ptr& __lhs, exception_ptr& __rhs)
     ^
abk1k2.cpp: In function 'int main()':
abk1k2.cpp:18:5: error: 'ifstream' was not declared in this scope
     ifstream fin("abk1k2.in");

     ^
abk1k2.cpp:18:5: note: suggested alternative:
In file included from /usr/include/c++/4.8/ios:38:0,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from abk1k2.cpp:1:
/usr/include/c++/4.8/iosfwd:157:34: note:   'std::ifstream'
   typedef basic_ifstream<char>   ifstream;
                                  ^
abk1k2.cpp:18:14: error: expected ';' before 'fin'
     ifstream fin("abk1k2.in");

              ^
abk1k2.cpp:19:5: error: 'ofstream' was not declared in this scope
     ofstream fout("abk1k2.out");

     ^
abk1k2.cpp:19:5: note: suggested alternative:
In file included from /usr/include/c++/4.8/ios:38:0,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from abk1k2.cpp:1:
/usr/include/c++/4.8/iosfwd:160:34: note:   'std::ofstream'
   typedef basic_ofstream<char>   ofstream;
                                  ^
abk1k2.cpp:19:14: error: expected ';' before 'fout'
     ofstream fout("abk1k2.out");

              ^
abk1k2.cpp:21:11: error: 'fin' was not declared in this scope
     if (!(fin >> a >> b >> k1 >> k2)) return 0;

           ^
abk1k2.cpp:28:5: error: 'fout' was not declared in this scope
     fout << res << endl;

     ^
abk1k2.cpp:28:20: error: 'endl' was not declared in this scope
     fout << res << endl;

                    ^
abk1k2.cpp:28:20: note: suggested alternative:
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from abk1k2.cpp:1:
/usr/include/c++/4.8/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^

Cum funcționează evaluarea?