Eroare de compilare: user.c: In function ‘V’: user.c:12:11: error: ‘N’ undeclared (first use in this function) C *r=(N*)malloc(sizeof(N)); ^ user.c:12:11: note: each undeclared identifier is reported only once for each function it appears in user.c:12:13: error: expected expression before ‘)’ token C *r=(N*)malloc(sizeof(N)); ^ user.c: At top level: user.c:16:10: error: unknown type name ‘ac’ void ins(ac *t,char *p,int i) { ^ user.c:26:10: error: unknown type name ‘ac’ void bfs(ac *t) { ^ user.c:41:14: error: unknown type name ‘ac’ void antibfs(ac *t) { ^ user.c: In function ‘main’: user.c:53:9: warning: implicit declaration of function ‘ins’ [-Wimplicit-function-declaration] scanf("%s",c),ins(t,c,i); ^ user.c:54:5: warning: implicit declaration of function ‘bfs’ [-Wimplicit-function-declaration] bfs(t),p=t,lg=strlen(tx); ^ user.c:62:5: warning: implicit declaration of function ‘antibfs’ [-Wimplicit-function-declaration] antibfs(t); ^ user.c:51:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.in","r",stdin),freopen("ahocorasick.out","w",stdout),scanf("%s",tx),scanf("%d",&n),t=V(); ^ user.c:51:48: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.in","r",stdin),freopen("ahocorasick.out","w",stdout),scanf("%s",tx),scanf("%d",&n),t=V(); ^ user.c:51:84: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.in","r",stdin),freopen("ahocorasick.out","w",stdout),scanf("%s",tx),scanf("%d",&n),t=V(); ^ user.c:51:99: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.in","r",stdin),freopen("ahocorasick.out","w",stdout),scanf("%s",tx),scanf("%d",&n),t=V(); ^ user.c:53:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",c),ins(t,c,i); ^