1. 구간 합 구하기 2: https://www.acmicpc.net/problem/10999
2. Light Switching: https://www.acmicpc.net/problem/1395
3. XOR: https://www.acmicpc.net/problem/12844
4. 공장: https://www.acmicpc.net/problem/7578
5. Mars Maps: https://www.acmicpc.net/problem/3392
6. 도서실카펫: https://www.acmicpc.net/problem/2601
누가 Segment Tree + Lazy propagation 물어봤길래 대강 뽑아옴 + 고전 몇 개 추가
이번주동안 꾸준히 풀면되겠다 이걸이제봤네