foo.cc: In function 'int main()':
foo.cc:8:12: error: array must be initialized with a brace-enclosed initializer
  int a[1]=x/100;
           ~^~~~
foo.cc:9:9: error: conflicting declaration 'int a [2]'
  int a[2]=x/10%10;
         ^
foo.cc:8:6: note: previous declaration as 'int a [1]'
  int a[1]=x/100;
      ^
foo.cc:10:9: error: conflicting declaration 'int a [3]'
  int a[3]=x%10;
         ^
foo.cc:8:6: note: previous declaration as 'int a [1]'
  int a[1]=x/100;
      ^

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