Time Limit: 2 second(s) | Memory Limit: 32 MB |
We are all quite familiar with finding 'average'. Let us define new kind of average of a function.
Given a function f(x) and two values a and b (a ≤ b) if we take all the numbers (not necessarily integers) from a to b then
Now for f(x) = x^{k} you are given k, a and b, you have to find the average according to the description.
Input starts with an integer T (≤ 400), denoting the number of test cases.
Each case contains an integer k (1 ≤ k ≤ 4) and two real numbers a and b (0 < a ≤ b ≤ 10).
For each case, print the case number and the average. Error less than 10^{-6} will be ignored.
Sample Input |
Output for Sample Input |
4 1 2 2 2 2 2.0 1 2.0 4 2 2 4.0 |
Case 1: 2 Case 2: 4 Case 3: 3 Case 4: 9.3333333333 |
Developed and Maintained by
JANE ALAM JAN |
Copyright © 2012
LightOJ, Jane Alam Jan |