foo.cc: In function 'int main()':
foo.cc:49:27: warning: format '%lld' expects argument of type 'long long int*', but argument 2 has type 'int*' [-Wformat=]
   49 |                 scanf("%lld", &a[i]);
      |                        ~~~^   ~~~~~
      |                           |   |
      |                           |   int*
      |                           long long int*
      |                        %d

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