Borderou de evaluare (job #168485)

Eroare de compilare: user.c: In function ‘main’: user.c:12:30: warning: left-hand operand of comma expression has no effect [-Wunused-value] user.c:12:25: error: lvalue required as left operand of assignment user.c:13:24: warning: left-hand operand of comma expression has no effect [-Wunused-value] user.c:13:19: error: lvalue required as left operand of assignment user.c: At top level: user.c:17:1: warning: data definition has no type or storage class [enabled by default] user.c:17:1: warning: type defaults to ‘int’ in declaration of ‘fclose’ [-Wimplicit-int] user.c:17:1: warning: parameter names (without types) in function declaration [enabled by default] user.c:18:1: warning: data definition has no type or storage class [enabled by default] user.c:18:1: warning: type defaults to ‘int’ in declaration of ‘fclose’ [-Wimplicit-int] user.c:18:1: warning: parameter names (without types) in function declaration [enabled by default] user.c:19:1: error: expected identifier or ‘(’ before ‘return’ user.c: In function ‘main’: user.c:16:1: warning: control reaches end of non-void function [-Wreturn-type]