foo.cc: In function 'int main()':
foo.cc:11:25: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'char*' [-Wformat=]
   11 |                 scanf("%d",&a[i]);
      |                        ~^  ~~~~~
      |                         |  |
      |                         |  char*
      |                         int*
      |                        %hhd

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