---
ch-1:
  - function: removeone
    arguments:
      - 0
      - 2
      - 9
      - 4
      - 6
    result: true
  - arguments:
      - 5
      - 1
      - 3
      - 2
    result: false
  - arguments:
      - 2
      - 2
      - 3
    result: true
ch-2:
  - function: duplicatezeros
    arguments:
      - 1
      - 0
      - 2
      - 3
      - 0
      - 4
      - 5
      - 0
    result:
      - 1
      - 0
      - 0
      - 2
      - 3
      - 0
      - 0
      - 4
  - arguments:
      - 1
      - 2
      - 3
    result:
      - 1
      - 2
      - 3
  - arguments:
      - 0
      - 3
      - 0
      - 4
      - 5
    result:
      - 0
      - 0
      - 3
      - 0
      - 0