Borderou de evaluare (job #182062)

Compilare: user.c: In function ‘main’: user.c:45:13: warning: unused variable ‘o’ [-Wunused-variable] user.c:15:13: warning: unused variable ‘cs’ [-Wunused-variable] user.c:8:25: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] user.c:6:16: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:7:16: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] user.c:9:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:11:18: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]