Eroare de compilare: user.c: In function ‘A’: user.c:8:10: error: ‘new’ undeclared (first use in this function) N *p=new N; ^ user.c:8:10: note: each undeclared identifier is reported only once for each function it appears in user.c:8:14: error: expected ‘,’ or ‘;’ before ‘N’ N *p=new N; ^ user.c: In function ‘main’: user.c:12:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("sate.in","r",stdin),freopen("sate.out","w",stdout),scanf("%d%d%d%d",&n,&m,&x,&y); ^ user.c:12:41: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("sate.in","r",stdin),freopen("sate.out","w",stdout),scanf("%d%d%d%d",&n,&m,&x,&y); ^ user.c:12:70: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] freopen("sate.in","r",stdin),freopen("sate.out","w",stdout),scanf("%d%d%d%d",&n,&m,&x,&y); ^ user.c:14:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&i,&j,&k),A(i,j,k),A(j,i,-k); ^