https://classroom.github.com/a/i-tW_O3h


1. Heap 완성

  - insert, delete, show(level-order traversal)

  - insert number that represent some priority

2. BST 완성

 - insert, delete, show(in order traversal)

3. Sets 완성 + EqualSets()

 - insert pair(n,m)

 - findset(n) : return all the member of set

 - equalSet(n, m): compare equal condition of two sets that containing n and m, respectively


4. Programming projects

- Leftist Trees

  1) insert some x with priority

  2) in-order traversal

  3) level-order traversal