The following functions each determine all pairs of two values in alist that sum to asum. As is shown in the notes, (a) write the complexity class of each statement on its right, where N is len(alist). def how_sum_1 (alist, asum): def how_sum_2 (alist, asum): for f in alist: aset = set (alist)for s in alist: for v in alist: if f+s asun : if asum-v in aset return (f, s) return (v, asum-v) return None return None (lb) b)c)d) for both functions, which takes longer: finding a solution or finding no solution?

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.

Which one of the following voltages should never be measured directly with a vom? a. 1200 v b. 500 v c. 800 v d. 100v

Kiesha has a worksheet with a range of cells using the following columns: name, score, group, study group, and date. kiesha needs to sort the worksheet on the date field. which option she use to most efficiently complete this task ? a use the cut and paste option to reorganize the data to fit that order b use the filter function to organize the data based on the date c use the order function to organize the data based on the date d use the sort function to organize the data based on date order