foo.cpp: In member function 'int Splay::Del(int, int)':
foo.cpp:112:40: error: expected ')' before ';' token
                 ret += Del(lb, ch[x][1];);
                                        ^
foo.cpp:112:41: error: expected primary-expression before ')' token
                 ret += Del(lb, ch[x][1];);
                                         ^
foo.cpp:112:41: error: expected ';' before ')' token