foo.cc: In function 'int main()':
foo.cc:42:17: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'bool*' [-Wformat=]
   42 |         scanf("%d", &a[i]);
      |                ~^   ~~~~~
      |                 |   |
      |                 |   bool*
      |                 int*

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