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HDU 2586 How far away ?(LCA裸题) Codeforces Round # 555 (Div. 3) C2. Increasing subsequence (complicated version) (贪心) HDU 6521 Party (线段树 二分)
HDU 2586 How far away ?(LCA裸题)
Codeforces Round # 555 (Div. 3) C2. Increasing subsequence (complicated version) (贪心)
HDU 6521 Party (线段树 二分)