Compilare: user.cpp: In function ‘int main()’: user.cpp:30:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] cp[i] = wp[u]; ^ user.cpp:32:9: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(d[u] + 1 > d[p]){ ^ user.cpp:32:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(d[u] + 1 > d[p]){ ^ user.cpp:33:7: warning: array subscript has type ‘char’ [-Wchar-subscripts] d[p] = d[u] + 1; ^ user.cpp:33:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] d[p] = d[u] + 1; ^ user.cpp:34:8: warning: array subscript has type ‘char’ [-Wchar-subscripts] wp[p] = i; ^ user.cpp:46:12: warning: ‘st’ may be used uninitialized in this function [-Wmaybe-uninitialized] i = wp[st]; ^