Eroare de compilare: user.cpp:15: error: ‘std::ofstream write’ redeclared as different kind of symbol /usr/include/unistd.h:363: error: previous declaration of ‘ssize_t write(int, const void*, size_t)’ user.cpp: In function ‘void dummy_df(int, int, int)’: user.cpp:22: error: invalid operands of types ‘ssize_t(int, const void*, size_t)’ and ‘int’ to binary ‘operator<<’ user.cpp: In function ‘void solution_3()’: user.cpp:124: error: invalid operands of types ‘ssize_t(int, const void*, size_t)’ and ‘int’ to binary ‘operator<<’ user.cpp:124: warning: suggest parentheses around ‘-’ inside ‘<<’