View Compilation Error

0_0_35229253_32645.cpp: In function 'void hebin(int, int)':
0_0_35229253_32645.cpp:12:8: error: 'n' was not declared in this scope
  if(a!=n)
        ^
0_0_35229253_32645.cpp:18:8: error: 'n' was not declared in this scope
  if(b!=n)
        ^