Birthday paradox- test cases not passing

This question is from the number theory section. 6 of the 7 test cases aren’t passing. Can anyone? explain what’s wrong?
https://ide.codingblocks.com/#/s/17014

Hi Aditi! ur code is fine except one thing. You are calculating probability of people not having same birthday , so u have to replace pr with 1-pr. And you have to handle the case when pr=1.
Okay , go through this you will be able to understand https://ide.codingblocks.com/#/s/17186

I think there is some problem with test case 1 as my all answer are comming correct then also it is showing wrong answer can you pls check https://ide.codingblocks.com/s/642213 this my code.