View Compilation Error

0_0_38576905_11781.cpp: In function 'int main()':
0_0_38576905_11781.cpp:5:2: error: '_int64' was not declared in this scope
  _int64 big[34],small[34];
  ^~~~~~
0_0_38576905_11781.cpp:5:2: note: suggested alternative: '_rotr64'
  _int64 big[34],small[34];
  ^~~~~~
  _rotr64
0_0_38576905_11781.cpp:8:2: error: 'big' was not declared in this scope
  big[0]=1,small[0]=0;
  ^~~
0_0_38576905_11781.cpp:8:11: error: 'small' was not declared in this scope
  big[0]=1,small[0]=0;
           ^~~~~