foo.cc: In member function 'int solution::movetree(int, std::vector<int>&)':
foo.cc:20:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   20 | for (int i = 0; i < L+1; ++i)
      | ^~~
foo.cc:22:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   22 |  return cnt;
      |  ^~~~~~

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