/in/foo.cc: In function 'int main()':
/in/foo.cc:35:53: warning: format '%d' expects argument of type 'int', but argument 5 has type 'long long int' [-Wformat=]
       printf("w(%d, %d, %d) = %d\n",i,j,k,a[i][j][k]);
                                                     ^