今日目标：
上午
- 1
- get free vpn and chatgpt environment
- coding first bfs
- 2
- coding second bfs
- design and coding graph pattern data structure
- 3
- newly design pattern
- NO done
下午
plan: 离线在线写完闭环-[希望今日完成]->测试NO->within leaf->测试->among leaf
- 1
- play chatgpt
- plan how to restore aggregate node
- 2
- code restore
- fix NO
- 3
- output
- help ccg some problem about IE and vpn
- 4
- design load
晚上
- 1
- fix offset del bug
- design agg in load
