摘要: #include<cstdio> #include<cstring> #include<algorithm> using namespace std; const int maxn=100010; int n,m,op,x,y; int lc[maxn],rc[maxn],dist[maxn],rt 阅读全文
posted @ 2021-12-05 09:13 Linshey 阅读(76) 评论(0) 推荐(0) 编辑