Function foo

    line 67
    max(0, (B - A))
    O(n)
      line 19
      max(0, (D - C)) + max(0, (D - C))
      O(n)

Total Bound: max(0, (D - C)) + max(0, (D - C)) + max(0, (B - A))
Total Complexity: O(n)