Eroare de compilare: user.c: In function ‘Ok’: user.c:45:62: error: ‘false’ undeclared (first use in this function) if( !((i >= 1 && i <= N) && (j >= 1 && j <= N)) ) return false; ^ user.c:45:62: note: each undeclared identifier is reported only once for each function it appears in user.c: In function ‘Citire’: user.c:25:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&N,&D,&K); ^ user.c:28:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.c:33:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.c: In function ‘main’: user.c:135:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen(InFile,"r",stdin); ^ user.c:136:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen(OutFile,"w",stdout); ^