/in/foo.cc: In function 'int main()':
/in/foo.cc:44:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for (int i = 1; i <= n; ++i) a[i] = read(); a[0] = 0;
  ^~~
/in/foo.cc:44:46: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  for (int i = 1; i <= n; ++i) a[i] = read(); a[0] = 0;
                                              ^