==== 找一下dp的感觉 ====

(1) 较为复杂的动态规划(<del>poj1191</del>,<del>poj1054</del>,<del>poj3280</del>,<del>poj2029</del>,<del>poj2948</del>,<del>poj1925</del>,<del>poj3034</del>)

(2) 记录状态的动态规划(<del>POJ3254</del>,<del>poj2411</del>,<del>poj1185</del>)

(3) 树型动态规划(<del>poj2057</del>,<del>poj1947</del>,<del>poj2486</del>,<del>poj3140</del>)

==== 补一下比赛 ====

<del>[[https://atcoder.jp/contests/abc155|AtCoder Beginner Contest 155]]:很久以前打过然后一败涂地，打算看一下题解写一点东西</del>