---
ch-1:
  - function: uniqueoccurrences
    arguments:
      - 1
      - 2
      - 2
      - 1
      - 1
      - 3
    result: 1
  - arguments:
      - 1
      - 2
      - 3
    result: 0
  - arguments:
      - -2
      - 0
      - 1
      - -2
      - 1
      - 1
      - 0
      - 1
      - -2
      - 9
    result: 1
ch-2:
  - function: dictionaryrank
    arguments: CAT
    result: 3
  - arguments: GOOGLE
    result: 88
  - arguments: SECRET
    result: 255