import week3._. In Rational.scala I have no warnings, but in scratch.sc I get a warning that "Package names doesn't correspond to directory structure." My project is setup like this: progfun/src/main/scala/week3 where week3 is a Package in IntelliJ, and Rational.scala and scratch.sc are Scala Class and Scala Worksheet, respectively. Has anyone here run the examples from the lectures in week3 in IntelliJ can help me get this working?
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it asks you to implement:
/** * Returns a set transformed by applying `f` to each element of `s`. */ def map(s: FunSet, f: Int => Int): FunSet
however, you cannot actually correctly implement such a set using
f. you need the inverse of
f (which may not even exist, e.g. for
_ / 2). you can hack it together by iterating over some subset of the domain, as is done with
exists, but that is not a completely correct solution/implementation, and also should be documented as needing to use the upper and lower bounds if you need to do so
IoT is a platform to connect the things which have an internet. A connected device is a complex solution, with various potential entry doors for an attacker. A connected device pentest IoT includes tests on the entire object ecosystem. That is electronic layer, embedded softwares, communications protocol, servers, web and mobile interface. The pentest on the electrical side,embedded softwares, and communication protocol concern vulnerabilities more specifically the IoT.
There are three types of attacks on connected objects and embedded systems. Software attack, non-invasive and invasive hardware attacks. The first take advantage of software vulnerabilities, the second recover information from the hardware without damaging it while the third involve opening the components and therefore destroying them in order to be able to extract secrets. While the first two types of attacks do not require many resources, this is not thecase for invasive attacks, for which very expensive equipment is requires.
Exprclass but I'm not that sure.