Borderou de evaluare (job #192524)

Compilare: user.c: In function ‘main’: user.c:31:13: warning: unused variable ‘d’ [-Wunused-variable] user.c:29:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:30:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:32:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]