Borderou de evaluare (job #57519)

Compilare: user.c: In function ‘main’: user.c:45:23: warning: character constant too long for its type [enabled by default] user.c:8:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:9:7: warning: ‘a’ is used uninitialized in this function [-Wuninitialized] user.c:20:7: warning: ‘b’ is used uninitialized in this function [-Wuninitialized] user.c:21:14: warning: ‘cfa’ may be used uninitialized in this function [-Wuninitialized] user.c:13:10: warning: ‘ca’ may be used uninitialized in this function [-Wuninitialized]