Borderou de evaluare (job #33404)

Compilare: user.c: In function ‘main’: user.c:9:43: warning: unused variable ‘o4’ [-Wunused-variable] user.c:9:39: warning: unused variable ‘o3’ [-Wunused-variable] user.c:12:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:18:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]