Milky's note

https://www.hackerrank.com/challenges/the-blunder/problem?isFullScreen=true The Blunder | HackerRank Query the amount of error in Sam's result, rounded up to the next integer. www.hackerrank.com [문제] Samantha was tasked with calculating the average monthly salaries for all employees in the EMPLOYEES table, but did not realize her keyboard's 0 key was broken until after completing the calculation..