Using only what you have learned in class, create a webpage that has two divs on it: input and output. Only the input div is editable. On the webpage state: "You are only allowed to enter 50 characters in the input box.". Above the output div have text that says "Number of characters remaining:" and inside the output div, display the number of characters the user can still enter in the input div. So, at the beginning, the output div would have "50" in it. If the user types in a character in the input div, you should automatically see the output div turn to "49"… If the number of characters left goes to a negative number, change the font color in the output div to red

Some of your friends have gotten into the burgeoning field of time-series data mining, in which one looks for patterns in sequences of events that occur over time. purchases at stock exchanges--what’s being bought-- are one source of data with a natural ordering in time. given a long sequence s of such events, your friends want an efficient way to detect certain "patterns" in them--for example, they may want to know if the four events buy yahoo, buy ebay, buy yahoo, buy oracle occur in this sequence s, in order but not necessarily consecutively. they begin with a collection of possible events (e. g., the possible’ transactions) and a sequence s of n of these events. a given event may occur multiple times in s (e. g., yahoo stock may be bought many times in a single sequence s). we will say that a sequence s’ is a subsequence of s if there is a way to delete certain of the events from s so that the remaining events, in order, are equal to the sequence s’. so, for example, the sequence of four events above is a subsequence of the sequence buy amazon, buy yahoo, buy ebay, buy yahoo, buy yahoo, buy oracle their goal is to be able to dream up short sequences and quickly detect whether they are subsequences of s. so this is the problem they pose to you: give an algorithm that takes two sequences of even~s--s’ of length m and s of length n, each possibly containing an event more than once--and decides in time o(m n) whether s’ is a subsequence of s

Is an attack that relies on guessing the isns of tcp packets

Who can provide you with a new password when you have forgotten your old one? your provide you with a new password in case you forget your old one.