View Compilation Error

0_0_37179775_11222.cpp: In function 'int main()':
0_0_37179775_11222.cpp:7:2: error: '_int64' was not declared in this scope
  _int64 arr[100];
  ^
0_0_37179775_11222.cpp:8:2: error: 'arr' was not declared in this scope
  arr[0] = 0;
  ^