Question 110880


1.

*[invoke hummingbird_distance_2D 4, 0, 6, 3]


2.

*[invoke hummingbird_distance_2D 1, 1, 3, 2]

3.

*[invoke hummingbird_distance_2D 5, 2, 5, -2]

4.

*[invoke hummingbird_distance_2D 1, 3, 1, 5]