Eroare de compilare: user.cpp: In function ‘int div(int, int)’: user.cpp:72:25: error: new declaration ‘int div(int, int)’ int div(int nrn, int nrd) ^ In file included from /usr/include/c++/4.8/cstdlib:72:0, from /usr/include/c++/4.8/ext/string_conversions.h:41, from /usr/include/c++/4.8/bits/basic_string.h:2815, from /usr/include/c++/4.8/string:52, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:2: /usr/include/stdlib.h:785:14: error: ambiguates old declaration ‘div_t div(int, int)’ extern div_t div (int __numer, int __denom) ^ user.cpp: In function ‘void cautare(int, int)’: user.cpp:94:12: error: no match for ‘operator!’ (operand type is ‘div_t’) while (!div(nrn, nrd)) { ^ user.cpp:94:12: note: candidate is: user.cpp:94:12: note: operator!(bool) <built-in> user.cpp:94:12: note: no known conversion for argument 1 from ‘div_t’ to ‘bool’ user.cpp:93:9: warning: unused variable ‘divide’ [-Wunused-variable] int divide = 0; ^