**计算机学会（CCF）定期举行全国青少年信息学奥林匹克（NOI）竞赛系列活动。
竞赛涉及相关的算法如下：
高精度
加法
减法
乘法
高精度除单精
排序算法
选择排序
插入排序
hash排序
归并排序
堆排序
快排
字符串匹配算法
蛮力法
KMP
数论
欧几里德算法
扩展欧几里德算法ax+by=c的正整数
素数测试 {O(sqrt(n))}
筛法求素数
快速乘方(高精)
树论
二叉搜索树
优先队列
线段树
平衡树一种(SBT)
图论
拓扑排序
割顶，割边(桥) {O(n)}
强连通分支 {O(n)}
有向无回路图的最长路径(罕见用上的)
欧拉回路
最小生成树
Prime
Kruskal
次小生成树
最短路径
Dijkstra
Bellman-ford
spfa
flyod
计算几何学
判断两条线段是否相交
凸包算法 {O(n)}
其他算法
并查集
RMQ问题(通解：线段树，st算法)
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
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Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
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Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.