Eroare de compilare: user.cpp:6:24: error: ‘int rand’ redeclared as different kind of symbol int n,d,k,x,y,contor,i,rand,randmax=-1; ^~~~ In file included from /usr/include/c++/6/cstdlib:75:0, from /usr/include/c++/6/ext/string_conversions.h:41, from /usr/include/c++/6/bits/basic_string.h:5417, 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 user.cpp:1: /usr/include/stdlib.h:374:12: note: previous declaration ‘int rand()’ extern int rand (void) __THROW; ^~~~ user.cpp: In function ‘int main()’: user.cpp:108:14: error: assignment of function ‘int rand()’ rand=0; ^ user.cpp:108:14: error: cannot convert ‘int’ to ‘int() throw ()’ in assignment user.cpp:111:48: warning: ISO C++ forbids incrementing a pointer of type ‘int (*)() throw ()’ [-Wpointer-arith] if(stop[i][t]==0||mark[i][t]==1)rand++; ^~ user.cpp:111:48: error: lvalue required as increment operand user.cpp:113:33: error: no matching function for call to ‘max(int&, int (&)() throw ())’ randmax=max(randmax,rand); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from user.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:219:5: note: candidate: template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&) max(const _Tp& __a, const _Tp& __b) ^~~ /usr/include/c++/6/bits/stl_algobase.h:219:5: note: template argument deduction/substitution failed: user.cpp:113:33: note: deduced conflicting types for parameter ‘const _Tp’ (‘int’ and ‘int() throw ()’) randmax=max(randmax,rand); ^ In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from user.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:265:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) max(const _Tp& __a, const _Tp& __b, _Compare __comp) ^~~ /usr/include/c++/6/bits/stl_algobase.h:265:5: note: template argument deduction/substitution failed: user.cpp:113:33: note: deduced conflicting types for parameter ‘const _Tp’ (‘int’ and ‘int() throw ()’)