View Compilation Error

0_0_18935983_4626.cpp: In function 'int main()':
0_0_18935983_4626.cpp:22:9: error: 'b' was not declared in this scope
      if(b[y.size()]!=1)for(;;);
         ^
0_0_18935983_4626.cpp:22:13: error: request for member 'size' in 'y', which is of non-class type 'const int'
      if(b[y.size()]!=1)for(;;);
             ^
0_0_18935983_4626.cpp:29:8: error: 'b' was not declared in this scope
     if(b[y.size()]!=1)for(;;);
        ^
0_0_18935983_4626.cpp:29:12: error: request for member 'size' in 'y', which is of non-class type 'const int'
     if(b[y.size()]!=1)for(;;);
            ^