i only need e and i

9. Use activity diagrams to model the following procedures and code it in C#: a. Check if two list of names are overlapping. b. Find the standard deviation of a list of decimal numbers. c. Sort a list of integers from the smallest to the biggest. d. Given a list of names, find how many names are over 20 characters. e. Given a list of decimal numbers, find out how many of the numbers are zeros. f. Given a list of dates, find a sub-list of dates that fall in 2018. g. Given two lists of numbers, find a list of numbers that are com- mon in both lists. h. Encrypt a text message by adding a 32-bit binary number to each block of 10 characters in the message. i. Given two time periods, determine if they are overlapping or not. j. Given two time periods, determine the amount of overlapping time in days between them