Compilare: user.cpp: In function ‘int main()’: user.cpp:85:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(tm->fiu[s2[j]]==NULL) ^ user.cpp:87:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] tm->fiu[s2[j]]=new nod(); ^ user.cpp:88:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] tm->fiu[s2[j]]->tata=tm; ^ user.cpp:90:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] tm=tm->fiu[s2[j]]; ^ user.cpp:113:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(tm->fiu[si[i]]!=NULL) ^ user.cpp:115:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] tm=tm->fiu[si[i]]; ^ user.cpp:123:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(tm->fiu[si[i]]!=NULL) ^ user.cpp:124:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] tm=tm->fiu[si[i]]; ^ user.cpp:69:9: warning: unused variable ‘ans’ [-Wunused-variable] int ans=0,n,m,i,j,l,l1,st,dr; ^ user.cpp:69:17: warning: unused variable ‘m’ [-Wunused-variable] int ans=0,n,m,i,j,l,l1,st,dr; ^ user.cpp:67:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("virus.in","r",stdin); ^ user.cpp:68:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("virus.out","w",stdout); ^ user.cpp:73:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d\n",&l1,&n); ^ user.cpp:74:15: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(si+1); ^ user.cpp:79:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&l); ^ user.cpp:80:19: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s2+1); ^ /tmp/ccUykqWZ.o: In function `main':