> For the complete documentation index, see [llms.txt](https://wandersofb.gitbook.io/blog/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wandersofb.gitbook.io/blog/c++/qi-ji-yin-qiao/tu-cun-chu-fang-shi.md).

# 图存储方式

* 邻接表存储方式

```cpp
vector<vector<int>> v(n);
for (auto& e : edges)
{
    int x = e[0], y = e[1];
    v[x].push_back(y);
    v[y].push_back(x);
}
```