Compilare: main.cpp: In function 'void antibfs(ac*)': main.cpp:55:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<fr->nd.size(); ++j) final[fr->nd[j]]=fr->n0; ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:61:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.in","r",stdin); ^ main.cpp:62:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.out","w",stdout); ^ main.cpp:63:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",tx); ^ main.cpp:64:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:67:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",c); ^ main.cpp: In function 'void ins(ac*, char*, int)': main.cpp:30:19: warning: array subscript is below array bounds [-Warray-bounds] if(0==t->f[urm]) t->f[urm]=new ac; ~~~~~~~~^ main.cpp:30:30: warning: array subscript is below array bounds [-Warray-bounds] if(0==t->f[urm]) t->f[urm]=new ac; ~~~~~~~~^ main.cpp:31:8: warning: array subscript is below array bounds [-Warray-bounds] ins(t->f[urm],p+1,i); ~~~^~~~~~~~~~~~~~~~~