We used indicator random variables in the proof of the expected running time of RANDOMIZED-QUICKSORT. For this problem, you should read about indicator variables and the hiring problem in Sections 5.1 and 5.2 of the textbook. As part of a cryptography assignment in CMSC 426, a student has written code to generate random permutations P on a set of n characters. If the permutation leaves too many inputs unchanged, it might result in a weakness in the system. Assuming the permutations are truly random, how many characters do I expect to be left unchanged by the permutation

it could be e. idk for sure

well cos like a ds it doesn't really die out, unlike for example, fifa, they always come out with a new version, so lets say your fifa 18 is charging you to update the teams and stuff, so, if messi were to go to real madrid (never gonna happen) it would switch messi to the other team, until the owners of fifa come out with fifa 19, then the game would eventually stop updating, and back to the ds, it doesn't really stop working after sometime because there's lots of things that it could be used for, and idk if u know what i'm saying, but long story short, samsung, represents the ds, if they still work, and people love them but not the new version, the old version still works, so they don't really force people to buy new phones, get me?