Assume a file system with 3 users: Alice, Bob, and Charlie. There are three files: file1, file2, and file3, with the following access rights: Alice can access file1 (read, write), file2 (read), and file3 (write)
Bob can access file2 (read), and file3 (read, write)
Charlie can access file3 (read).
(a) Write the access control matrix for the system given the above subjects and objects and access rights.
(b) Write the access control lists for the files given the above subjects and objects and access rights.

Problem 1 - hashing we would like to use initials to locate an individual. for instance, mel should locate the person mark e. lehr. note: this is all upper case. generate a hash function for the above using the numbers on your telephone. you know, each letter has a number associated with it, so examine your telephone keypad. generate 512 random 3 letter initials and take statistics on a linked list array size 512 to hold this information report how many have no elements, 1 element, 2 elements, does this agree with the hashing statistics distribution?

Me with this program in c++ ! computers represent color by combining sub-colors red, green, and blue (rgb). each sub-color's value can range from 0 to 255. thus (255, 0, 0) is bright red. (130, 0, 130) is a medium purple. (0, 0, 0) is black, (255, 255, 255) is white, and (40, 40, 40) is a dark gray. (130, 50, 130) is a faded purple, due to the (50, 50, 50) gray part. (in other word, equal amounts of red, green, blue yield gray).given values for red, green, and blue, remove the gray part. ex: if the input is 130 50 130, the output is: 80 0 80. thus, find the smallest value, and then subtract it from all three values, thus removing the gray.

Negative methods of behavior correction include all but this: sarcasm verbal abuse setting an example for proper behavior humiliation