Borderou de evaluare (job #106998)

Compilare: user.c: In function ‘main’: user.c:28:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.c:17:73: warning: variable ‘s’ set but not used [-Wunused-but-set-variable] user.c:17:16: warning: variable ‘bc’ set but not used [-Wunused-but-set-variable] user.c:17:13: warning: variable ‘ac’ set but not used [-Wunused-but-set-variable] user.c:20:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]