OJ Board

Can the sample data be explained:

Input Output My concern is, the distance from (2, 5) to (7, 4) is sqrt(26) = 5.099019514 which is greater than the given 5.099, so here is the case that if the string is shorter than the distance of the nails, what happends?

The problem is looking at the precision of 1.0e-6 while this input is off the tolerance, and is this data actually in the test data?

Hi nealzane

No worries. In the problem's dataset there is not such case, that is, you wont find any case where the string is shorter than the distance between the nails.

Regards!