308. Hyperboloid Distance
Time limit per test: 0.5 second(s)
Memory limit: 65536 kilobytes
input: standard
output: standard
You are given two points A and B on the surface of the hyperboloid
x2+
y2-
z2=1. Find the shortest distance between them along the surface.
Input
The input file contains six real numbers:
xA,
yA,
zA,
xB,
yB and
zB (coordinates of A and B), separated by spaces and/or line breaks (-1 ≤
zA,
zB ≤ 1).
Output
Output the shortest distance between A and B along the surface of the hyperboloid. Your answer should be accurate within +-0.1.
Example(s)
sample input | sample output |
1 0 0
0 1 0
|
1.5707963267
|