Exercise 4.4.6: wait/signal vs wait/notify. info about a different version of a monitor, developed for the programming language mesa, replaces the primitive "signal" with "notify", which does not block the invoking process on the urgent queue but allows the process to finish the current function. as a result, a process is able to execute multiple "notify" statements before exiting a function. two processes, p1 and p2, call the function f() in the following monitor and since x < 0, both become blocked on c. a process p3 calls g() and notifies both p1 and p2 that x is now greater than 0. monitor m { x = -1 f() { if (x < 0) c. wait x = h(x) } g() { x = 1 c. notify c. notify } (a) what could go wrong with this code and yield incorrect results? (b) how could the program be modified to avoid the problem?

Matlab question: use switch and anythe lottery game matches three different integer numbers between 1 and 10. winning depends on how many matching numbers are provided by a player. the player provides three different integers between 1 and 10.if there is a match of all 3 numbers, the winning $ 1000.if there is a match with 2 numbers, the winning $ 10.if there is a match of all with 1 numbers, the winning $ 1.with no match, the winning is $0.write a function lottery3 that checks three numbers provided by a player and determine the winning amount. if the user mistakenly enters same number twice/thrice and if that number matches one of the winning numbers, the code should count that number only once and display correct result. the player doesn’t have to guess the order of numbers. the input to the function lottery3 can have up to two input arguments. the first input argument is a row array numbers with 3 numbers. if the second argument input testcode is present, and is a row vector of 3 values, the function lottery3 uses the code in testcode as the three winning numbers (the test must be three different integer numbers between 1 and 10), else three different numbers will be automatically generated by testcode. the ouput should return the variable winnings and the three winning numbers in the row array winnumbers. hint: make use of the internal function any. restriction: the function must use switch-case statements to determine the winning. example #1: winning = lottery3( [1,2,1],[1,2,3])produceswinning =10example #2: [winning, winnumbers] = lottery3( [1,2,3])produceswinning =3winnumbers =8 5 3

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Atype of researcher who uses computers to make sense of complex digital data