Compilare: main.cpp: In function 'int main()': main.cpp:55:29: warning: array subscript has type 'char' [-Wchar-subscripts] cst[i][j] = aux[str[j]]; ^ main.cpp:63:19: warning: array subscript has type 'char' [-Wchar-subscripts] dp[x1][y1][aux[c]] = 0; ^ main.cpp:63:20: warning: array subscript has type 'char' [-Wchar-subscripts] dp[x1][y1][aux[c]] = 0; ^ main.cpp:64:38: warning: array subscript has type 'char' [-Wchar-subscripts] que[0].push_back(Data(x1, y1, aux[c])); ^