## Problems 1. [20210 - 파일 탐색기](https://www.acmicpc.net/problem/20210) 2. [4195- 친구 네트워크](https://www.acmicpc.net/problem/4195) 3. [3687 - 성냥개비](https://www.acmicpc.net/problem/3687) 4. [20543 - 폭탄 던지는 태영이](https://www.acmicpc.net/problem/20543)
