View Compilation Error

0_0_18935967_28425.cpp: In function 'int main()':
0_0_18935967_28425.cpp:22:11: error: request for member 'size' in 'y', which is of non-class type 'const long long int'
      if(y.size()!=1)for(;;);
           ^
0_0_18935967_28425.cpp:29:10: error: request for member 'size' in 'y', which is of non-class type 'const long long int'
     if(y.size()!=1)for(;;);
          ^