• TESSOKU_BOOK A13. Close Pairs
• TOKIOMARINE2020 D. Knapsack Queries on a tree
• ABC338 F. Negative Traveling Salesman
• ARC151 B. A < AP
• ARC092 C. 2D Plane 2N Points
• DisjointSparseTable
• ABC080 D. Recording
• AGC032 B. Balanced Neighbors
• ABC176 D. Wizard in Maze
• 謎WA集
• TENKA1_2015_QUALA C. 天下一美術館
• 重み付きUnion-Find
• AGC027 C. ABland Yard
• LCA
• CF17_FINAL D. Zabuton
• ARC037 C. 億マス計算
• ARC139 C. One Three Nine
• ARC053 C. 魔法使い高橋君
• ARC146 B. Plus and AND
• HITACHI2020 C. ThREE