Compilare: user.cpp: In function ‘int main()’: user.cpp:32:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(a[k.x][k.y][k.z] == 0&& k.x<=n && k.x>=1 && k.y<=n && k.y>=1 && k.z<=n && k.z>=1){ ^ user.cpp:32:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(a[k.x][k.y][k.z] == 0&& k.x<=n && k.x>=1 && k.y<=n && k.y>=1 && k.z<=n && k.z>=1){ ^ user.cpp:32:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(a[k.x][k.y][k.z] == 0&& k.x<=n && k.x>=1 && k.y<=n && k.y>=1 && k.z<=n && k.z>=1){ ^ user.cpp:33:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[k.x][k.y][k.z]=a[b.x][b.y][b.z]+1; ^ user.cpp:33:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[k.x][k.y][k.z]=a[b.x][b.y][b.z]+1; ^ user.cpp:33:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[k.x][k.y][k.z]=a[b.x][b.y][b.z]+1; ^ user.cpp:33:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[k.x][k.y][k.z]=a[b.x][b.y][b.z]+1; ^ user.cpp:33:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[k.x][k.y][k.z]=a[b.x][b.y][b.z]+1; ^ user.cpp:33:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[k.x][k.y][k.z]=a[b.x][b.y][b.z]+1; ^ user.cpp:44:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] g<<a[c[sf].x][c[sf].y][c[sf].z]<<'\n'; ^ user.cpp:44:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] g<<a[c[sf].x][c[sf].y][c[sf].z]<<'\n'; ^ user.cpp:44:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] g<<a[c[sf].x][c[sf].y][c[sf].z]<<'\n'; ^