this is an extension of assignment 5.3.
using the address book you already created and populated, output the whole book as a tab-separated table. you can choose any order you like for the names and fields, though i suggest alphabetical order and at least having the name as the first field displayed.
now that you have that working, clean the address book up...
don't forget that some potentially have multiple entries.
make sure it displays properly as a table with the cleaned entries.
write a program that generates a list of a dozen random integers between one and a million then lists all the factors of each in ascending order.
write a program that turns a string of letters into morse code and the nato alphabet.
write a program that takes the current number of seconds on the clock and outputs a harmonic series up to that number in the denominator and the sum.
(a harmonic series is 1/1 + 1/2 + 1/3 + 1/4...)
don't forget to display a message saying it's impossible if the current number of seconds is 0.