Compilare: user.cpp: In function ‘int main()’: user.cpp:27:21: 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:27:26: 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:27:31: 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:28:22: 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:28:27: 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:28:32: 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:28:39: 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:28:44: 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:28:49: 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:30:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i==0) b1[k.x][k.y][k.z]=1; ^ user.cpp:30:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i==0) b1[k.x][k.y][k.z]=1; ^ user.cpp:30:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i==0) b1[k.x][k.y][k.z]=1; ^ user.cpp:31:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i==1) b1[k.x][k.y][k.z]=0; ^ user.cpp:31:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i==1) b1[k.x][k.y][k.z]=0; ^ user.cpp:31:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i==1) b1[k.x][k.y][k.z]=0; ^ user.cpp:32:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i==2) b1[k.x][k.y][k.z]=3; ^ user.cpp:32:37: warning: array subscript has type ‘char’ [-Wchar-subscripts]