testcases:
  - name: "testcase 1"
    inputs:
    - 1 : [9, 7, 20, 3, 15]
    output:
    - 1 : 3

  - name: "testcase 2"
    inputs:
    - 1 : [3,9,20,null,null,15,7]
    output:
    - 1 : 3

  - name: "testcase 3"
    inputs:
    - 1 : [-10, -23, 45, -25]
    output:
    - 1 : 3

  - name: "testcase 4"
    inputs:
    - 1 : [0]
    output:
    - 1 : 1

  - name: "testcase 5"
    inputs:
    - 1 : [2, 1]
    output:
    - 1 : 2