View Compilation Error

0_0_33629563_532.cpp: In function 'int work(int, int, std::vector<std::pair<int, int> >&)':
0_0_33629563_532.cpp:83:23: error: 'orz' was not declared in this scope
  int n=n1+n2+2; orz(n1); orz(n2);
                       ^
0_0_33629563_532.cpp: In function 'void Solve()':
0_0_33629563_532.cpp:98:58: error: 'orz' was not declared in this scope
  int n=read(); eset.clear(); b1.clear(),b2.clear(); orz(n);
                                                          ^