foo.cc: In function 'int bfs(int, int)':
foo.cc:37:15: warning: narrowing conversion of '((double)t * 1.2e+0)' from 'double' to 'int' [-Wnarrowing]
   37 |   rint ne[]={t*1.2,t+1,t-1};
      |              ~^~~~
foo.cc:26:13: warning: control reaches end of non-void function [-Wreturn-type]
   26 |  queue<int> q;
      |             ^

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