Beat the Spread! Time Limit: 2 Seconds      Memory Limit: 65536 KB Superbowl Sunday is nearly here. In order to pass the time waiting for the half-time commercials and wardrobe malfunctions, the local hackers have organized a betting pool on the game…

L2-009. 抢红包 时间限制 300 ms 内存限制 65536 kB 代码长度限制 8000 B 判题程序 Standard 作者 陈越 没有人没抢过红包吧-- 这里给出N个人之间互相发红包.抢红包的记录,请你统计一下他们抢红包的收获. 输入格式: 输入第一行给出一个正整数N(<= 104),即参与发红包和抢红包的总人数,则这些人从1到N编号.随后N行,第i行给出编号为i的人发红包的记录,格式如下: K N1 P1 ... NK PK 其中K(0 <= K <= 20)是发出去的红…

Matlab是矩阵语言,如果运算可以用矩阵实现,其运算速度非常快.但若运算中涉及到大量循环,Matlab的速度令人难以忍受的.当必须使用for循环且找不到对应的矩阵运算来等效时,可以将耗时长的函数用C语言实现,并编译成Mex文件,Matlab便可以像调用内建函数一样调用C编写的函数.Mex文件其实是一种动态链接库,旧版本Matlab可以直接调用.dll,新版本要调用.mexw32或.mexw64文件. 编译过程需要C语言编译器,在Matlab中键入mex –setup进行安装与配置. MEX文件…

滑雪 Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 83276 Accepted: 31159 Description Michael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 5 16 17 18 1…

Happy Necklace                                                                           Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)                                                                            …

Easy Summation                                                             Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)                                                                                          …

The Pilots Brothers' refrigerator Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 20304   Accepted: 7823   Special Judge Description The game "The Pilots Brothers: following the stripy elephant" has a quest where a player needs to o…

IP Address Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 19125   Accepted: 11053 Description Suppose you are reading byte streams from any device, representing IP addresses. Your task is to convert a 32 characters long sequence of '1s'…

Deleting Edges                                                                                  Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)                                                                    …

Mincost Time Limit: 2 Seconds      Memory Limit: 65536 KB The cost of taking a taxi in Hangzhou is not a constant for each kilometer you travel: the first 4 kilometers costs 10 yuan (yuan is the monetary unit in China), even if you don't finish it; t…