Eroare de compilare: main.cpp: In function 'int operatie_1(int, std::vector<int>&)': main.cpp:14:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( i < v.size() && ok==1 ){ ~~^~~~~~~~~~ main.cpp:21:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int operatie_2(int, std::vector<int>&)': main.cpp:24:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( i < v.size() && ok == 1 ){ ~~^~~~~~~~~~ main.cpp: In function 'int operatie_3(int, std::vector<int>)': main.cpp:36:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( i < v.size() && ok == 1 ){ ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:58:55: error: reference to 'hash' is ambiguous if ( operatie == 1 ) operatie_1 ( numar , v [ hash ( numar , n ) ] ); ^~~~ main.cpp:9:5: note: candidates are: int hash(int, int) int hash( int x, int n){ ^~~~ In file included from /usr/include/c++/6/bits/basic_string.h:5646:0, from /usr/include/c++/6/string:52, from /usr/include/c++/6/bits/locale_classes.h:40, from /usr/include/c++/6/bits/ios_base.h:41, from /usr/include/c++/6/ios:42, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/c++/6/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^~~~ main.cpp:59:55: error: reference to 'hash' is ambiguous if ( operatie == 2 ) operatie_2 ( numar , v [ hash ( numar , n ) ] ); ^~~~ main.cpp:9:5: note: candidates are: int hash(int, int) int hash( int x, int n){ ^~~~ In file included from /usr/include/c++/6/bits/basic_string.h:5646:0, from /usr/include/c++/6/string:52, from /usr/include/c++/6/bits/locale_classes.h:40, from /usr/include/c++/6/bits/ios_base.h:41, from /usr/include/c++/6/ios:42, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/c++/6/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^~~~ Non zero exit status: 1