View Compilation Error

0_0_20587058_6302.cpp: In function 'int main()':
0_0_20587058_6302.cpp:9:2: error: '_int64' was not declared in this scope
  _int64 a[22];
  ^
0_0_20587058_6302.cpp:10:2: error: 'a' was not declared in this scope
  a[1]=0;
  ^