Borderou de evaluare (job #64245)

Compilare: user.c: In function ‘main’: user.c:10:45: warning: unused variable ‘a’ [-Wunused-variable] user.c:10:40: warning: unused variable ‘r’ [-Wunused-variable] user.c:10:37: warning: unused variable ‘j’ [-Wunused-variable] user.c:10:30: warning: unused variable ‘cub’ [-Wunused-variable] user.c:13:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:16:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]