Borderou de evaluare (job #233828)

Compilare: user.c: In function ‘main’: user.c:17:17: warning: unused variable ‘k’ [-Wunused-variable] user.c:15:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:16:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:19:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:22:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] user.c: In function ‘ciur’: user.c:12:1: warning: control reaches end of non-void function [-Wreturn-type]