View Compilation Error

0_0_34136575_22270.cpp: In function 'void splay(int, int)':
0_0_34136575_22270.cpp:157:19: error: 'p' was not declared in this scope
  while(father[x]!=p){
                   ^
0_0_34136575_22270.cpp:171:6: error: 'p' was not declared in this scope
  if(!p){
      ^