thjkhdf12:
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thjkhdf12:
博客地址：https://www.cnblogs.com/thjkhdf12/
分层图最短路，dijstraP2939 [USACO09FEB]改造路Revamping Trails
codeforces div3 19/10/23A.Yet Another Dividing into Teams
codeforces 19/10/24 div2C. Minimize The Integer
ICPC Aisa Yinchuan, 线段树(max,add)G.Pot!!
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codeforces 19/11/06 div2A. Maximum Square