Function foo

    line 17
    max(B, 0)
    O(n)
      line 10
      max(A, 0) + max(A, 0)
      O(n)
        line 8
        1
        O(1)

Total Bound: 1 + max(B, 0) + max(A, 0) + max(A, 0)
Total Complexity: O(n)