hello world

DescriptionGiven two integers: n and m and n is divisible by 2m, you have to write down the first n natural numbers in the following form. At first take first mintegers and make their sign negat

DescriptionFibsieve had a fantabulous (yes, it's an actual word) birthday party this year. He had so many gifts that he was actually thinking of not having a party next year.Among these gifts th

DescriptionOur lovely KK has a difficult mathematical problem:he has a N\left( 1\leq N\leq {10}^{18}\right) meters steel,he will cut it into steels as many as possible,and he doesn't want any tw

Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 325  Solved: 59SubmitStatusWeb BoardDescription985走入了一个n * n的方格地图，他已经知道其中有一个格子是坏的。现在他要从(1, 1)走到(n, n)，每次只可以向下或者向右走一步，问他能否到达（n，n）。若不能到达输出-

Description985有n个数，已知每次操作可以将其中不相同的两个数一个加一、一个减一，操作次数不限。问他最多可以得到多少个相同的数。Input第一行输入一个整数t，代表有t组测试数据。每组数据占两行，第一行输入一个n代表元素个数，下面一行输入n个整数a[]。注：1 Output输出一个整数代表最多可以得到多少个相同的数。

DESCRIPTIONGiven a number sequence [3,7,22,45,116,...][3,7,22,45,116,...]. Please tell me the kk-th number.INPUTA number T (T100)T (T indicates the number of the input cases. Then fo

DescriptionFibsieve had a fantabulous (yes, it's an actual word) birthday party this year. He had so many gifts that he was actually thinking of not having a party next year.Among these gifts th

DescriptionThere is sequence 1, 12, 123, 1234, ..., 12345678910, ... . Now you are given two integers A and B, you have to find the number of integers fromAth number to Bth (inclusive) number, w

问题 1004: 母牛的故事时间限制: 1Sec 内存限制: 128MB 提交: 3463 解决: 764题目描述有一头母牛，它每年年初生一头小母牛。每头小母牛从第四个年头开始，每年年初也生一头小母牛。请编程实现在第n年的时候，共有多少头母牛？输入输入数据由多个测试实例组成，每个测试实例占一行，包括一个整数n(0n=0