近日，花了4天时间再一次进行了网络流相关的专题
已经将总体进度推进到了hzwer的第四页
虽不能说硕果累累，但也是略有成效了
做题的相关感悟如下：
1）最小路径覆盖（路径问题）：出度入度拆点后跑二分图匹配
2）最大独立集：二分图建图后跑最小割
3）供求关系可以考虑二分图
4）棋盘类问题可以考虑染色
5）最大权闭合子图
6）列出数学等式，按等式的正负配合流量平衡进行建图
这一次虽然做了很多题，但注定只是一次阶段性的冲刺
因为之前有所听闻的一些经典建模方式仍然没有接触到
所以一定会有下一次冲刺哒！
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