Borderou de evaluare (job #147901)

Compilare: user.c: In function ‘main’: user.c:6:9: warning: unused variable ‘a’ [-Wunused-variable] user.c:9:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:13:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:49:1: warning: control reaches end of non-void function [-Wreturn-type]