yumao

摘要： 滑雪Time Limit: 1000MSMemory Limit: 65536KTotal Submissions: 60568Accepted: 22075DescriptionMichael喜欢滑雪百这并不奇怪， 因为滑雪的确很刺激。可是为了获得速度，滑的区域必须向下倾斜，而且当你滑到坡底，你不得不再次走上坡或者等待升降机来载你。Michael想知道载一个区域中最长底滑坡。区域由一个二维数组给出。数组的每个数字代表点的高度。下面是一个例子 1 2 3 4 516 17 18 19 615 24 25 20 714 23 22 21 813 12 11 10 9一个人可以从某个点滑向... 阅读全文

摘要： Problem DescriptionFor national security, the coordinate systems of public map service are all in an encryption system. This means that when you got the latitude and longitude coordinates from a GPS device, you cannot finger out the real place at a public map with that coordinates.We know an encrypt 阅读全文

摘要： Problem DescriptionAs we know,the fzu AekdyCoin is famous of math,especially in the field of number theory.So,many people call him "the descendant of Chen Jingrun",which brings him a good reputation.AekdyCoin also plays an important role in the ACM_DIY group,many people always ask him ques 阅读全文