Problem Set - 提高

ID	Problem Show tags Hide tags	AC / Tried	Difficulty
4070	P4070 数字计数提高动态规划省选数位DP	0 / 0	8
4071	P4071 Amount of Degrees 提高动态规划一本通数位DP	0 / 0	5
4157	P4157 [USACO06NOV] Bad Hair Day S 提高 USACO 栈	0 / 0	5

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