자가 균형 이진 탐색 트리(self-balancing binary search tree)

참고 자료

https://code-lab1.tistory.com/62

https://velog.io/@ayeon59/CRed-Black-TreeCheatSheetv1#️-red-black-tree-특성

https://e-juhee.tistory.com/entry/c언어-Red-Black-Tree-구현하기

https://velog.io/@ceusun0815/RBTree-트리-생성-트리-삭제-구현-C-언어