Borderou de evaluare (job #48545)

Eroare de compilare: user.c: In function ‘main’: user.c:9:12: warning: comparison between pointer and integer [enabled by default] user.c:9:12: warning: comparison with string literal results in unspecified behavior [-Waddress] user.c:10:9: error: ‘f’ undeclared (first use in this function) user.c:10:9: note: each undeclared identifier is reported only once for each function it appears in user.c:12:5: error: expected ‘;’ before ‘}’ token user.c:19:15: error: ‘k’ undeclared (first use in this function)