Whether or not it can be just simpl. depending on the definition of orb.

Given two integers n and k, return all possible combinations of k numbers out of 1 ... n.

以前的BaaN 5时代可以直接找到First Free Number这个Session，在LN中需要从Numbers Group的Session中找到相应的序列，并修改其First Free Number。

Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ...) which sum to n.

“Damn Single (单身狗)” is the Chinese nickname for someone who is being single. You are supposed to find those who are alone in a big party, so they can be taken c...

PAT 1105 Spiral Matrix（25） This time your job is to fill a sequence of N positive integers into a spiral matrix in non-increasing order. A spiral matrix is fil...

Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.

Write a program to find the n-th ugly number.

Write a program to check whether a given number is an ugly number.

读mma8452q的datasheet的时候找到这样一句话：三个轴的数据，存储为12位2的补码。之前学计算机的时候第一节课就是关于原码、反码、补码的介绍，当时只知道个大概怎么转换，做这种题的时候也特别烦。至于为什么计算机中为什么...