酷狗没会员了QAQ#include<bits/stdc++.h>usingnamespacestd;intn,m,f[1001],enm[1001];intfind(intx){if(f[x]!=x)x=find(f[x]);returnx;}voidhebing(intx,inty){x=find(x);y=find(y);if(x==y)return;f[y]=x;