Borderou de evaluare (job #523687)

Compilare: user.c: In function 'main': user.c:65:10: warning: unused variable 'ch' [-Wunused-variable] user.c:61:13: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] user.c:62:13: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] user.c:67:11: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] user.c:71:15: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] user.c:76:23: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] user.c:77:19: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]