Borderou de evaluare (job #149670)

Compilare: user.c: In function ‘main’: user.c:37:17: warning: unused variable ‘k’ [-Wunused-variable] user.c:37:15: warning: unused variable ‘j’ [-Wunused-variable] user.c:35:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:36:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:38:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:41:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]