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Calculate the probability that at least two people in a group share the same birthday. Given an integer input n, return to 0.015 (1.5%) precision the probability of this being the case. Assume that every day is equally probable as a birthday and ignore the leap year.

Example:

Input: 1 Output: 0.00

Input: 366 Output: 1.00

46 correct solutions
25 incorrect solutions

Last solution submitted on Feb 24, 2015