Compilare: user.cpp: In function ‘void Insert_Trie(Trie*, int, int)’: user.cpp:22:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(nod->fii[v[poz]]==0) ^ user.cpp:23:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] nod->fii[v[poz]]=new Trie; ^ user.cpp:24:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] Insert_Trie(nod->fii[v[poz]],poz+1,end); ^ user.cpp: In function ‘int Find_Trie(Trie*, char*)’: user.cpp:31:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(nod->fii[*s]==0) ^ user.cpp:33:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] Find_Trie(nod->fii[*s],s+1); ^ user.cpp:35:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:42:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&n); ^ user.cpp:56:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&m); ^