成长日记的博客

Aproper vertex coloringis a labeling of the graph's vertices with colors such that no two vertices sharing the same edge have the same color. A coloring using at mostkcolors is called a (proper)k...

There is a kind of balanced binary search tree named red-black tree in the data structure. It has the following 5 properties: (1) Every node is either red or black. (2) The root is black. (3) Every...

In July 2004, Google posted on a giant billboard along Highway 101 in Silicon Valley (shown in the picture below) for recruitment. The content is super-simple, a URL consisting of the first 10-digi...

数据的要求 standard format 标准格式 a pair of 一双（一般是每组测试有两个数） rearrange 重新排列 数据描述 polynomial 多项式 exponent 指数 coefficient 系数 respectively 依次为...

Calculate a+b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less than four digits). Input Specification: Each input ...