8
Educational Codeforces Round 113
source link: http://www.shuizilong.com/house/archives/educational-codeforces-round-113/
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September 10, 2021
C
比赛时靠着直觉改对了样例直接交了。。。
感觉代码好像有 bug
D
肯定比 [SDOI2009]虔诚的墓主人 简单，只要横纵坐标分别统计位于节点中间的点有多少个即可。
E
meet-in-middle
Posted by
xiaodao
Category: 日常
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