File encryption and decryption write a program that uses a dictionary to assign "codes" to each letter of the alphabet. for example: codes = { ‘a’ : ‘%’, ‘a’ : ‘9’, ‘b’ : ‘@’, ‘b’ : ‘#’, etc . .} using this example, the letter a would be assigned the symbol %, the letter a would be assigned 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 dictionary to write an encrypted version of the file’s contents to a second file. each character in the second 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 contents on the screen.

Working on this program in python 3.7: a year in the modern gregorian calendar consists of 365 days. in reality, the earth takes longer to rotate around the sun. to account for the difference in time, every 4 years, a leap year takes place. a leap year is when a year has 366 days: an extra day, february 29th. the requirements for a given year to be a leap year are: 1) the year must be divisible by 42) if the year is a century year (1700, 1800, the year must be evenly divisible by 400some example leap years are 1600, 1712, and 2016.write a program that takes in a year and determines whether that year is a leap year.ex: if the input is 1712, the output is: 1712 is a leap year. ex: if the input is 1913, the output is: 1913 is not a leap year. your program must define and call the function isleapyear(useryear). the function should return true if the input year is a leap year and false otherwise.

In cell h5 enter a formula that will calculate the percentage of attendees that went to the altamonte springs job fair in 2018.

Jean has kept the content of her website limited to what is important; she has also ensured that the text follows a particular style and color all throughout her website. which website features has jean kept in mind? jean has limited the content of her website to what is important; this ensures (clarity, simplicity, harmony and unity) of the content. she has also formatted the text in a particular style and color throughout her website, ensuring (balance, simplicity, consistency)