投稿

Sum of Square Numbers (四平方数和定理)

Entropy

AtCoder Caddi 2018 E. Negative Doubling (Stack)

Codeforces 962F. Simple Cycles Edges (BCC)

Codeforces 1009F. Dominant Indices (DSU on Tree)

Codeforces 990F. Flow Control (Tree + DP)

Codeforces 985F. Isomorphic Strings (String + Hash)

Codeforces 1051F. The Shortest Statement (Shortest Path + LCA)

Codeforces 1065F. Up and Down the Tree (DP + Tree + Greedy)

Codeforces 1093F. Vasya and Array (DP)

Codeforces 1093E. Intersection of Permutations (Divide and Conquer + Fenwick Tree)

Codeforces 1093G. Multidimensional Queries (Manhattan Distance + Segment Tree)

Codeforces 1083E. The Fair Nut and Rectangles (DP+Convex-Hull Trick)