View Compilation Error

0_0_32897727_27398.cpp: In function 'int main()':
0_0_32897727_27398.cpp:44:2: error: '_int64' was not declared in this scope
  _int64 m;
  ^
0_0_32897727_27398.cpp:48:3: error: 'm' was not declared in this scope
   m = 0;
   ^