Eroare de compilare: user.c:1:18: error: fstream: No such file or directory user.c:2: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'namespace' user.c:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fin' user.c:4: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fout' user.c: In function 'main': user.c:8: error: 'fin' undeclared (first use in this function) user.c:8: error: (Each undeclared identifier is reported only once user.c:8: error: for each function it appears in.) user.c:17: error: 'fout' undeclared (first use in this function) user.c:19:2: warning: no newline at end of file