2020CCPC河南省赛A-班委竞选签到不多说//AConemoretimes//nndbk#include<bits/stdc++.h>usingnamespacestd;typedeflonglongll;constintmod=1e9+7;constintN=2e5+10;vector<pair<int,int>>v[N];boolcmp(pair<int,int>a,pa