For empty list generation Even if you plan to add a value to a list, you need to initialize that list beforehand for the program to function correctly. In Python, an empty list is created by entering "[]". The two codes below are examples of how I initialized a list while solving problems on BOJ.# https://www.acmicpc.net/problem/10871import sysN, X = map(int, sys.stdin.readline().split())A = lis..