Eroare de compilare: user.c:6: warning: integer constant is too large for ‘long’ type user.c:6: error: size of array ‘buf’ is too large user.c: In function ‘main’: user.c:15: warning: integer constant is too large for ‘long’ type user.c:15: warning: overflow in implicit constant conversion user.c:13: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result user.c:14: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result