Using the properties of Regular languages, mention which properties .pdf

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Using the properties of Regular languages, mention which properties (i.e. the closure under certain operations) that help in constructing the following finite automata: 1- The FA that recognizes all RNA sequences that contain the subsequence ATA and also contains the subsequence TGA 2- The FA that recognizes all the words that start with an but do not end with ed 3- The FA that recognizes all the strings that are a reverse of those in question 2. 4- The FA that recognizes all the strings that do not start with ba or do not end with th.

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Using the Ceasar Cipher encryption algorithm, you take each character in the original message and shift it over a specified number of characters in the alphabet. If you shift the character A by one space, you get the character B. If you shift the character A by two spaces, you get the character C. The figure below shows some characters shifted by 3 spaces (A becomes C, B becomes D, C become E, D becomes F, etc). The number of letters to shift the characters in your message is called the encryption key. If we want to send the message hello using a key of 3, then we can create the encrypted message like this: h shifted 3 is k e shifted 3 is h l shifted 3 is o l shifted 3 is o o shifted 3 is r So our encrypted message would be khoor. Think about how to create a program that will perform the Ceasar Cipher on a text message that is entered by the user. The user will also enter the integer key that should be used for the encryption. Your program should display the encrypted message at the end of the program. (HINT: In the processing step, youll repeatedly use the shift algorithm on each character in the message. Try to write the processing step so that it has a format similar to the way a loop looks in Python, but dont worry about the details of how to perform the shift algorithm yet. Just note Use Shift Algorithm to find character.) Now lets learn how to implement the shift algorithm to calculate the encrypted value of that character. First lets learn about how to convert a letter to its equivalent ASCII value. Even when data is represented as character for humans, the computer likes to think of the characters as numbers. The computer doesnt think about the character a as a letter. Instead it assigns a number to each character and thinks about characters using their corresponding number. The most common character to number translation used by a computer is called ASCII (which stands for American Standard Code for Information Interchange). Heres a table that shows the ASCII value for most characters. Table 14-1: The ASCII Table The good news is that you dont need to memorize the table. The computer already knows all about how to translate a character into its ASCII value. We just need to know the command to perform this translation. To tell the computer that you want to use the ASCII value of a character, you use the ord( ) function to type cast the character value into an ordinal data type (which is an ASCII value). EX: character = input(Enter a character) asciiEquivalent = ord(character) print(The ASCII value of , character, is , asciiEquivalent) Write a Python program that just includes these 3 lines to test out the conversion process for yourself. Do you always get the ASCII value shown for the characters in the table above? (Its a good sign if you do!) Now lets think about how to use the ASCII value to achieve our Caesar Cipher shift. If we have the ASCII value of a character, we can add the key to that value to find the ASCII value of the enc.

Using the Ceasar Cipher encryption algorithm, you take each characte.pdf

Using the properties of Regular languages, mention which properties .pdf

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Using the properties of Regular languages, mention which properties .pdf