Borderou de evaluare (job #150079)

Compilare: user.c: In function ‘main’: user.c:17:19: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.c:8:27: warning: unused variable ‘c’ [-Wunused-variable] user.c:6:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:7:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:9:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:12:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]