View Compilation Error

0_0_30239699_27633.cpp: In function 'int main()':
0_0_30239699_27633.cpp:11:9: error: 'xm' was not declared in this scope
  cin >> xm[i];  
         ^
0_0_30239699_27633.cpp:15:5: error: 'xm' was not declared in this scope
  if(xm[j] & (1<<i)) cnt++;   
     ^
0_0_30239699_27633.cpp:18:6: error: 'xm' was not declared in this scope
  if((xm[8] & (1<<i))&&cnt%2 == 0 || cnt%2 == 1&&!(xm[8] & (1<<i))){    
      ^