Educational Codeforces Round 67 (Rated for Div. 2) E. Tree Painting（树形dp） - 代码天地

Educational Codeforces Round 67 (Rated for Div. 2) E. Tree Painting（树形dp）

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Educational Codeforces Round 67 (Rated for Div. 2) E. Tree Painting（树形dp）

Educational Codeforces Round 67 E.Tree Painting (树形dp)

Educational Codeforces Round 54 (Rated for Div. 2): E. Vasya and a Tree（DFS+差分）

Educational Codeforces Round 54 (Rated for Div. 2) E. Vasya and a Tree(dfs+思维)

【Educational Codeforces Round 54 (Rated for Div. 2) E. Vasya and a Tree】 dfs+树状数组

E. Vasya and a Tree (前缀和思维) Educational Codeforces Round 54 (Rated for Div. 2)

Educational Codeforces Round 54 (Rated for Div. 2) E. Vasya and a Tree （树上差分）

Educational Codeforces Round 49 (Rated for Div. 2)-E. Inverse Coloring-基础dp

E. Segment Sum （数位dp）Educational Codeforces Round 53 (Rated for Div. 2)

【Educational Codeforces Round 53 (Rated for Div. 2) E. Segment Sum】数位DP

Educational Codeforces Round 53 (Rated for Div. 2) E. Segment Sum （数位dp求和）

Educational Codeforces Round 83 (Rated for Div. 2) E. Array Shrinking（区间DP）

Educational Codeforces Round 87 (Rated for Div. 2) E. Graph Coloring(dp)

Educational Codeforces Round 83 (Rated for Div. 2) E. Array Shrinking 区间DP

Educational Codeforces Round 104 (Rated for Div. 2) E. Cheap Dinner(线段树优化dp)

Educational Codeforces Round 67 (Rated for Div. 2)

Educational Codeforces Round 67 (Rated for Div. 2) C

Educational Codeforces Round 67 (Rated for Div. 2) A B C

Educational Codeforces Round 67 (Rated for Div. 2)补题

Codeforces Educational Codeforces Round 44 (Rated for Div. 2) E. Pencils and Boxes

Educational Codeforces Round 69 (Rated for Div. 2) E. Culture Code dp(线段树转移） or 最短路计数

Educational Codeforces Round 87 (Rated for Div. 2) E. Graph Coloring （DFS+DP+状态记录+构造）

Educational Codeforces Round 43 (Rated for Div. 2) E. Well played!

Educational Codeforces Round 44 (Rated for Div. 2)+E. Pencils and Boxes+树状数组

Educational Codeforces Round 43 (Rated for Div. 2) E. Well played!（贪心）

Educational Codeforces Round 41 (Rated for Div. 2) E. Tufurama

Educational Codeforces Round 41 (Rated for Div. 2) E. Tufurama（树状数组）

Educational Codeforces Round 46 (Rated for Div. 2)E. We Need More Bosses

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