foo.cc: In function 'int main()':
foo.cc:20:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   20 |  for (int i = 0; i < (int)a.size(); i++)cout << a[i] << " "; cout << endl;
      |  ^~~
foo.cc:20:62: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   20 |  for (int i = 0; i < (int)a.size(); i++)cout << a[i] << " "; cout << endl;
      |                                                              ^~~~

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