View Compilation Error

0_0_39689542_15628.cpp:29:5: error: conflicting declaration 'int a [1000001]'
   29 | int a[1000001];
      |     ^
0_0_39689542_15628.cpp:10:5: note: previous declaration as 'int a [1000000]'
   10 | int a[1000000];
      |     ^
0_0_39689542_15628.cpp:30:5: error: redefinition of 'int main()'
   30 | int main()
      |     ^~~~
0_0_39689542_15628.cpp:11:5: note: 'int main()' previously defined here
   11 | int main()
      |     ^~~~