1. 집합의 표현: https://www.acmicpc.net/problem/1717
2. 여행 가자: https://www.acmicpc.net/problem/1976
3. Virtual Friends: https://www.acmicpc.net/problem/4195
4. Liars and Truth Tellers: https://www.acmicpc.net/problem/5859
5. Gates: https://www.acmicpc.net/problem/10775
6. 문명: https://www.acmicpc.net/problem/14868
7. 포스터: https://www.acmicpc.net/problem/13167
8. 비용: https://www.acmicpc.net/problem/2463
9. LADICE: https://www.acmicpc.net/problem/9938
A. Corporative Network: https://www.acmicpc.net/problem/3780
와! 유니온 파인드!
내가 잘못보는거야 아님 13167번이 세그먼트 트리 스위핑 좌표압축 유니온파인드 중 일부를 스까쓰는 갓문제야?
https://www.acmicpc.net/problem/15809