AtCoder Regular Contest 068 E - Snuke Line(线段树/树状数组 区间更新 单点查询+区间覆盖计数)
E-SnukeLineTimelimit:2sec/Memorylimit:256MBScore:700pointsProblemStatementSnukehasdecidedtoplayagame,wheretheplayerrunsarailwaycompany.ThereareM+1stationsonSnukeLine,numbered0throughM.AtrainonSnukeLin