foo.cc: In function 'int main()':
foo.cc:18:27: warning: narrowing conversion of '((double)t.node::now * 1.2e+0)' from 'double' to 'int' [-Wnarrowing]
   18 |         int nxt[3] ={t.now*1.2, t.now+1, t.now-1};
      |                      ~~~~~^~~~

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