1题目链接.https://www.matiji.net/exam/brushquestion/23/4777/C98C14523F069FECB0DEED64F00CEAB0 #include<bits/stdc++.h> using namespace std; int main( ) { ios::sync_with_stdio(0),cin.tie(0),cout.tie(0); int n;cin>>n; vector<int>a(n+1); vector<int>b(n+1); int cnt=0; for(int i=1;i<...