[BOJ/백준] 24444. 알고리즘 수업 - 너비 우선 탐색1
출처 https://www.acmicpc.net/problem/24444
출처 https://www.acmicpc.net/problem/24444
출처 https://www.acmicpc.net/problem/24480
출처 https://swexpertacademy.com/main/code/problem/problemDetail.do?problemLevel=4&contestProbId=AV14BgD6AEECFAYh&categoryId=AV14BgD6AEECFAYh&categ...
출처 https://swexpertacademy.com/main/code/problem/problemDetail.do?problemLevel=4&contestProbId=AV5LtJYKDzsDFAXc&categoryId=AV5LtJYKDzsDFAXc&categ...
출처 https://swexpertacademy.com/main/code/problem/problemDetail.do?problemLevel=4&contestProbId=AV15QRX6APsCFAYD&categoryId=AV15QRX6APsCFAYD&categ...