Eroare de compilare: user.c: In function ‘main’: user.c:54:5: warning: implicit declaration of function ‘B’ [-Wimplicit-function-declaration] for(B(t),p=t,g=strlen(x),i=0;i<g;++i) { ^ 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",x),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",x),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",x),scanf("%d",&n),t=V(); ^ user.c:51:98: 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",x),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),I(t,c,i); ^ /tmp/cchooP2e.o: In function `main': user.c:(.text.startup+0xe5): undefined reference to `B' collect2: error: ld returned 1 exit status