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- ProjectEuler+
- Project Euler #197: Investigating the behaviour of a recursively defined sequence
Project Euler #197: Investigating the behaviour of a recursively defined sequence
Project Euler #197: Investigating the behaviour of a recursively defined sequence
Contest ends in
This problem is a programming version of Problem 197 from projecteuler.net
Given is the function ( is the floor-function), the sequence is defined by and .
Find for with given and . Your answer would be considered correct if it has absolute error not more than .
Input Format
Every test file contains two real numbers: and with no more than two digits after decimal point. These numbers are situated in a single line and are separated by a single space.
Constraints
Output Format
Output exactly one real number which is the answer to the problem.
Sample Input 0
0 30
Sample Output 0
1.473849410