Compilare: user.cpp: In function ‘void calc_nxt()’: user.cpp:15:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] cur[str[i+1]] = i+1; ^ user.cpp: In function ‘void calc_nsd()’: user.cpp:24:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(nxt[i][ch] < n){ ^ user.cpp:25:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] nsd[i] = min(nsd[i] + nsd[nxt[i][ch]], inf); } } } } ^