视频链接： P6378[PA2010]Riddle-洛谷|计算机科学教育新生态(luogu.com.cn)//2-SAT+前缀优化O(n+m)#include<iostream>#include<cstring>#include<algorithm>usingnamespacestd;#definex0(x)x//点#definex1(x)x+n//反点#definep0(x)x+2*n