Today1. SQL 코드카타 1문제(86번)2. 파이썬 300제(126~150)3. 파이썬 개인과제 해설 강의 Today I Learned SQL self join 을 이용한 조건 출력https://lyj-01.tistory.com/132 1661. Average Time of Process per MachineThere is a factory website that has several machines each running the same number of processes. Write a solution to find the average time each machine takes to complete a process. The time to complete a process is the lyj-..