View Compilation Error

0_0_16094843_6352.cpp: In function 'int main()':
0_0_16094843_6352.cpp:5:2: error: '_int64' was not declared in this scope
  _int64 sum[36];
  ^
0_0_16094843_6352.cpp:7:2: error: 'sum' was not declared in this scope
  sum[1]=2;
  ^