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- File Encryption and DecryptionWrite a program that uses a dictionary to assign “codes” to each letter of the alphabet. Forexample:codes = { ‘A’ : ‘%’, ‘a’ : ‘9’, ‘B’ : ‘@’, ‘b’ : ‘#’, etc . . .}Using this example, the letter A would be assigned the symbol %, the letter a would beassigned the number 9, the letter B would be assigned the symbol @, and so forth.The program should open a specified text file, read its contents, then use the dictionaryto write an encrypted version of the file’s contents to a second file. Each character in thesecond file should contain the code for the corresponding character in the first file.Write a second program that opens an encrypted file and displays its decrypted contentson the screen. in phytonExercise: Least Dictionary Value Description In this exercise you will find the value in a dictionary with the least value. Least means that the value is less than or equal to all other values in the dictionary. Remember that the 2 Assistant Object inspectorclass BinaryImage: def __init__(self): pass def compute_histogram(self, image): """Computes the histogram of the input image takes as input: image: a grey scale image returns a histogram as a list""" hist = [0]*256 return hist def find_otsu_threshold(self, hist): """analyses a histogram it to find the otsu's threshold assuming that the input hstogram is bimodal histogram takes as input hist: a bimodal histogram returns: an optimal threshold value (otsu's threshold)""" threshold = 0 return threshold def binarize(self, image): """Comptues the binary image of the the input image based on histogram analysis and thresholding take as input image: an grey scale image returns: a binary image""" bin_img = image.copy() return…
- Given a dictionary where you have names of students as keys and their 3 exam grades as values, write a segment of code that calculates the average of every student and puts it in a list named averages. Then calculates the average of the class by averaging the results in the list averages. Run your code with the given dictionary studentExamGrades ## write your code in this cellstudentExamGrades = {"Alex":[90,75,60], "Sue":[100,88,95], "Matt":[66,80,75], "Raj":[55, 90, 70], "Sadie":[70, 89, 90]} #this is the given dictionaryScrabble Help: The file dictionary.txt contains all of the words in the Official Scrabble Player's Dictionary, Second Edition. Note: this list contains some offensive language. Write a class, WordLists, in Java that generates useful word lists for scrabble players using this list. Your class should contain the following methods: WordLists(String fileName): a constructor that takes the name of the dictionary file as the only parameter. lengthN(int n): returns an ArrayList of all length n words (Strings) in the dictionary file. endsWith(char lastLetter, int n): returns an ArrayList of words of length n ending with the letter lastLetter containsLetter(char included, int index, int n): returns an ArrayList of words of length n containing the letter included at position index. So for example the word "cannon" would be on the list returned by containsLetter('o',6,4) because it contains the letter 'o', at index 4, and is length 6. multiLetter(int m, char included): returns an ArrayList of…# Create Custom Transformer Create a custom transformer, just as we did in the lecture video entitled "Custom Transformers", that performs two computations: 1. Adds an attribute to the end of the numerical data (i.e. new last column) that is equal to $\frac{x_1^3}{x_5}$ for each observation. In other words, for each instance, you will cube the $x_1$ column and then divide by the $x_5$ column. 2. Drops the entire $x_4$ feature column if the passed function argument `drop_x4` is `True` and doesn't drop the column if `drop_x4` is `False`. (See further instructions below.) You must name your custom transformer class `Assignment4Transformer`. Your class should include an input parameter called `drop_x4` with a default value of `True` that deletes the $x_4$ feature column when its value is `True`, but preserves the $x_4$ feature column when you pass a value of `False`. This transformer will be used in a pipeline. In that pipeline, an imputer will be run *before* this transformer. Keep…
- Lab Goal : This lab was designed to teach you more about sorting data with the built-in java sorts. Lab Description : Take a list of words and output the list in ascending order. Use Arrays.sort().Sample Data : abc ABC 12321 fred alexandera zebra friendly acrobatics 435 TONER PRinTeRb x 4 r s y $123 ABC abc 034 dog cat sally sue bob 2a2Sample Output : word 0 :: 12321word 1 :: ABCword 2 :: abcword 3 :: alexanderword 4 :: fred word 0 :: 435word 1 :: PRinTeRword 2 :: TONERword 3 :: aword 4 :: acrobaticsword 5 :: friendlyword 6 :: zebra word 0 :: $word 1 :: 4word 2 :: bword 3 :: rword 4 :: sword 5 :: xword 6 :: y word 0 :: 034word 1 :: 123word 2 :: 2a2word 3 :: ABCword 4 :: abcword 5 :: bobword 6 :: catword 7 :: dogword 8 :: sallyword 9 :: sue I need a code class and a runner classCreat a void fuction void myUpdate(string dictionary[], int wordCount, string oldWord, string newWord); Where it will replace the oldWord with the newWord, if the search is successfulPython The program will create a quiz that will ask for the capital of a random state. Your program will repeat so that a total of 5 random states are presented to the user Write a program that creates a dictionary containing the U.S. states as keys, and their capitals asvalues. (Use the Internet to get a list of the states and their capitals.) The program should then randomly quiz the user by displaying the name of a state and asking the user to enter that state’s capital. The program should keep a count of the number of correct and incorrect responses. (As an alternative to the U.S. states, the program can use the names of countries and their capitals.)
- 2. ID: A Name: 2. A list of numbers is considered increasing if each value after the first is greater than or equal to the preceding value. The following procedure is intended to return true if numberList is increasing and return false otherwise. Assume that numberList contains at least two elements. Line 1: PROCEDURE isIncreasing (numberList) Line 2: { Line 3: count 2 Line 4: REPEAT UNTIL(count > LENGTH(numberList)) Line 5: Line 6: IF(numberList[count] =. YA198ICdef city_dict(adict): """ Question 6 -Given a dictionary that maps a person to a list of countries they want to travel to, return a dictionary with the value being the list sorted by the last letter in each countries name. If two countries have the same last letter, sort by the first letter. -For an extra challenge, try doing this in one line (Optional). Args: adict (dict) Returns: dict >>> city_dict({"Pablo": ["Belgium", "Canada", "Germany"], "Athena": ["Italy", "France", "Egypt"], "Liv": ["Japan", "Bolivia", "Greece"]}) {'Pablo': ['Canada', 'Belgium', 'Germany'], 'Athena': ['France', 'Egypt', 'Italy'], 'Liv': ['Bolivia', 'Greece', 'Japan']} >>> city_dict({"Jacob": ["Bahamas", "Brazil", "Chile"], "Lexi": ["Colombia", "Finland", "Panama"], "Emily": ["Ireland", "Russia", "Kenya", "Jordan"]}) {'Jacob': ['Chile', 'Brazil', 'Bahamas'], 'Lexi': ['Colombia', 'Panama', 'Finland'], 'Emily': ['Kenya',…int_to_bytes_big_endian(num): bytestr=deque() whilenum>0: # list.insert(0, ...) is inefficient bytestr.appendleft(num&0xff) num >>= 8 returnbytes(bytestr) def int_to_bytes_little_endian(num): bytestr= [] whilenum>0: bytestr.append(num&0xff) num >>= 8 returnbytes(bytestr) def bytes_big_endian_to_int(bytestr): num=0 forbinbytestr: num <<= 8 num+=b returnnum def bytes_little_endian_to_int(bytestr): num=0.