foo.cc: In function 'int main()':
foo.cc:85:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   85 |  for (int i = sum.size() - 1; i >= 0; i--)cout << sum[i]; cout << endl;
      |  ^~~
foo.cc:85:59: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   85 |  for (int i = sum.size() - 1; i >= 0; i--)cout << sum[i]; cout << endl;
      |                                                           ^~~~

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