【Ynoi2010】Brodal queue
【洛谷P6028】算术
【Ynoi2010】Fusion tree
【AtCoder Regular Contest 091 F】Strange Nim
【AtCoder Grand Contest 025 D】Choosing Points
【AtCoder Grand Contest 034 D】Manhattan Max Matching
【Codeforces 568E】Longest Increasing Subsequence
【AtCoder Grand Contest 032 C】Three Circuits
【AtCoder Grand Contest 035 C】Skolem XOR Tree
【AtCoder Grand Contest 035 D】Add and Remove
