/in/foo.cc: In function 'void printTree(int, int)':
/in/foo.cc:13:16: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat=]
   13 |     printf("%lld ",root[i][j]);
      |             ~~~^   ~~~~~~~~~~
      |                |            |
      |                |            int
      |                long long int
      |             %d