View Compilation Error

0_0_20536574_20088.cpp: In member function 'void Splay::init()':
0_0_20536574_20088.cpp:50:3: error: 'child' was not declared in this scope
   child[root][1] = 2, father[2] = 1;
   ^
0_0_20536574_20088.cpp:50:23: error: 'father' was not declared in this scope
   child[root][1] = 2, father[2] = 1;
                       ^
0_0_20536574_20088.cpp:51:3: error: 'size' was not declared in this scope
   size[1] = 2, size[2] = 1;
   ^