Codeforces Round #180 (Div. 2) A. Snow Footprints 贪心
A.SnowFootprints题目连接:DescriptionThereisastraightsnowyroad,dividedintonblocks.Theblocksarenumberedfrom1tonfromlefttoright.Ifonemovesfromthei-thblocktothe(i + 1)-thblock,hewillleavearightfootprintonthei......