Wrong Answer
/in/foo.cc: In function 'void getNext()':
/in/foo.cc:29:11: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
j=f[j];
~^~~~~
/in/foo.cc: In function 'void getNext()':
/in/foo.cc:29:11: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
j=f[j];
~^~~~~
