## WHAT?!

For most time, we use `malloc` or `new` for memory allocation, which will get it on heap.

However, access memory on heap is not as effective as the memory on stack, because the heap is "free-floating region of memory". To the contrary, memory on stack is managed by CPU …

## What is Quartile?

Quartile is a concept of descriptive statics. The quartiles of a ranked data set are the three points that divide the data set into four equal groups, each group comprising a quarter of data.

## Definitions

### first quartile (Q1)

First quartile, also known as lower quartile, splits off …

## HowTo

• 获取CS通信协议（最重要）

• 频道间切换（精选 - 热门 - 音频- 阅读）

• 展示某一条精选

• 在某一条精选中播放语音

## GeoHash

Geohash is a latitude/longitude geocode system invented by Gustavo Niemeyer when writing the web service at geohash.org, and put into the public domain. It is a hierarchical spatial data structure which subdivides space into buckets of grid shape.

## GeoHash算法的步骤

GeoHash对经度纬度分别编码，原理是迭代做二分，进而逼近真实值。

## 方法

### 使用反向DNS

```\$ dig -x 75.126.43.235

; <<>> DiG 9.8.1-P1 <<>> -x 75.126.43.235
;; global options: +cmd
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26688
;; flags: qr rd …```

## A. Sereja and Dima

```n = int(raw_input())
pokers = map(int, raw_input().split())

v = [0, 0]
p = 0

for i in xrange(n):
if pokers[0] > pokers[-1]:
v[p] += pokers[0]
del pokers[0]
else:
v[p] += pokers[-1 …```

## 为啥？

Pelican内置python-markdown做为默认解析器，用来将用户的`Markdown`格式的文章转为网页格式展示。

（笑，不黑了好嘛。。。

## 为什么要设计模式

（没有逼格的人连名人名言都引用不好。。。

## 啥？

Tic-tac-toe是我很久之前在CF上做的一道题。非常考细心的模拟题。

## show me the CODE

```class State {
public:
State …```