/in/foo.cc:37:11: error: call of overloaded 'edgenode()' is ambiguous
   37 | }edge[maxM];
      |           ^
/in/foo.cc:35:9: note: candidate: 'edgenode::edgenode(long long int, long long int, long long int)'
   35 |         edgenode(LL T = 0, LL F = 0, LL N = 0) : to(T), flow(F), next(N) {}
      |         ^~~~~~~~
/in/foo.cc:34:9: note: candidate: 'edgenode::edgenode()'
   34 |         edgenode() {}
      |         ^~~~~~~~