Eroare de compilare: user.c:1:19: error: iostream: No such file or directory user.c:2:18: error: fstream: No such file or directory user.c:7: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fin' user.c:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fout' user.c: In function 'main': user.c:14: error: 'fin' undeclared (first use in this function) user.c:14: error: (Each undeclared identifier is reported only once user.c:14: error: for each function it appears in.) user.c:31: error: 'nr' undeclared (first use in this function) user.c:33: error: 'fout' undeclared (first use in this function)