Compilare: user.cpp: In function ‘int main()’: user.cpp:40:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] ap[sir[i]]=1; ^ user.cpp:42:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] ap[sir[i]]=1; ^ user.cpp:62:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] sir[i]=cor[sir[i]]; ^ user.cpp:63:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(q->urm[sir[i]]==0) q->urm[sir[i]]=new nod; ^ user.cpp:63:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(q->urm[sir[i]]==0) q->urm[sir[i]]=new nod; ^ user.cpp:64:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] q=q->urm[sir[i]]; ^ user.cpp:68:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] sir[i]=cor[sir[i]]; ^ user.cpp:69:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(q->urm[sir[i]]==0) q->urm[sir[i]]=new nod; ^ user.cpp:69:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(q->urm[sir[i]]==0) q->urm[sir[i]]=new nod; ^ user.cpp:70:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] q=q->urm[sir[i]]; ^ /tmp/ccvTONJr.o: In function `main': user.cpp:(.text.startup+0x40): warning: the `gets' function is dangerous and should not be used.