set-n-levels: 5
insert(4, JFK): successful
insert(9, ORD): successful
insert(20, DFW): successful
get-min-key: 4
list-heap:
  {lev: 0 nodeCt: 3}
  [20 DFW]
  {lev: 1 nodeCt: 1}
  (4)
  [4 JFK]
  [9 ORD]
Structured list:
  {lev: 0 nodeCt: 3}
    Tree: 0
      [20 DFW]
  {lev: 1 nodeCt: 1}
    Tree: 0
      | [4 JFK]
      (4)
      | [9 ORD]
insert(5, DEL): successful
insert(6, LAX): successful
get-min-key: 4
get-max-level(JFK): 2
get-max-level(ORD): 0
get-max-level(DFW): 0
get-max-level(DEL): 1
get-max-level(LAX): 0
list-heap:
  {lev: 0 nodeCt: 5}
  [20 DFW]
  {lev: 1 nodeCt: 2}
  {lev: 2 nodeCt: 1}
  (4)
  (4)
  [4 JFK]
  [9 ORD]
  (5)
  [5 DEL]
  [6 LAX]
Structured list:
  {lev: 0 nodeCt: 5}
    Tree: 0
      [20 DFW]
  {lev: 1 nodeCt: 2}
  {lev: 2 nodeCt: 1}
    Tree: 0
      | | [4 JFK]
      | (4)
      | | [9 ORD]
      (4)
      | | [5 DEL]
      | (5)
      | | [6 LAX]
insert(7, CDG): successful
insert(16, SFO): successful
get-min-key: 4
list-heap:
  {lev: 0 nodeCt: 7}
  [20 DFW]
  {lev: 1 nodeCt: 3}
  (7)
  [7 CDG]
  [16 SFO]
  {lev: 2 nodeCt: 1}
  (4)
  (4)
  [4 JFK]
  [9 ORD]
  (5)
  [5 DEL]
  [6 LAX]
Structured list:
  {lev: 0 nodeCt: 7}
    Tree: 0
      [20 DFW]
  {lev: 1 nodeCt: 3}
    Tree: 0
      | [7 CDG]
      (7)
      | [16 SFO]
  {lev: 2 nodeCt: 1}
    Tree: 0
      | | [4 JFK]
      | (4)
      | | [9 ORD]
      (4)
      | | [5 DEL]
      | (5)
      | | [6 LAX]
insert(14, ATL): successful
get-min-key: 4
list-heap:
  {lev: 0 nodeCt: 8}
  {lev: 1 nodeCt: 4}
  {lev: 2 nodeCt: 2}
  {lev: 3 nodeCt: 1}
  (4)
  (4)
  (4)
  [4 JFK]
  [9 ORD]
  (5)
  [5 DEL]
  [6 LAX]
  (7)
  (7)
  [7 CDG]
  [16 SFO]
  (14)
  [14 ATL]
  [20 DFW]
Structured list:
  {lev: 0 nodeCt: 8}
  {lev: 1 nodeCt: 4}
  {lev: 2 nodeCt: 2}
  {lev: 3 nodeCt: 1}
    Tree: 0
      | | | [4 JFK]
      | | (4)
      | | | [9 ORD]
      | (4)
      | | | [5 DEL]
      | | (5)
      | | | [6 LAX]
      (4)
      | | | [7 CDG]
      | | (7)
      | | | [16 SFO]
      | (7)
      | | | [14 ATL]
      | | (14)
      | | | [20 DFW]
insert(8, PEK): successful
insert(11, BOS): successful
get-min-key: 4
list-heap:
  {lev: 0 nodeCt: 10}
  {lev: 1 nodeCt: 5}
  (8)
  [8 PEK]
  [11 BOS]
  {lev: 2 nodeCt: 2}
  {lev: 3 nodeCt: 1}
  (4)
  (4)
  (4)
  [4 JFK]
  [9 ORD]
  (5)
  [5 DEL]
  [6 LAX]
  (7)
  (7)
  [7 CDG]
  [16 SFO]
  (14)
  [14 ATL]
  [20 DFW]
Structured list:
  {lev: 0 nodeCt: 10}
  {lev: 1 nodeCt: 5}
    Tree: 0
      | [8 PEK]
      (8)
      | [11 BOS]
  {lev: 2 nodeCt: 2}
  {lev: 3 nodeCt: 1}
    Tree: 0
      | | | [4 JFK]
      | | (4)
      | | | [9 ORD]
      | (4)
      | | | [5 DEL]
      | | (5)
      | | | [6 LAX]
      (4)
      | | | [7 CDG]
      | | (7)
      | | | [16 SFO]
      | (7)
      | | | [14 ATL]
      | | (14)
      | | | [20 DFW]
