[Python : SWEA 10200] 구독자 전쟁
문제 https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AXMCXV_qVgkDFAWv&categoryId=AXMCXV_qVgkDFAWv&categoryType=CODE
문제 https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AXMCXV_qVgkDFAWv&categoryId=AXMCXV_qVgkDFAWv&categoryType=CODE
문제 https://www.acmicpc.net/problem/2630
문제 https://www.acmicpc.net/problem/9012
문제 https://www.acmicpc.net/problem/4949
문제 https://www.acmicpc.net/problem/4673