Eroare de compilare: user.c: In function ‘main’: user.c:6:17: error: ‘f’ undeclared (first use in this function) while(!feof(f)) { ^ user.c:6:17: note: each undeclared identifier is reported only once for each function it appears in user.c:5:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("paritate.in","r",stdin),freopen("paritate.out","w",stdout); ^ user.c:5:45: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("paritate.in","r",stdin),freopen("paritate.out","w",stdout); ^ user.c:7:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&c); ^ user.c:12:18: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&c); ^