Submission #58950653

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#define int long long 
const int N=2e5+10;
int a[N],b[N];
int n,m,ans;
bool flag=0;
int now;
signed main(){
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
    }
    for(int i=1;i<n;i++){
        cin>>b[i];
    }
    sort(a+1,a+n+1);
    sort(b+1,b+n);
    now=n-1;
    for(int i=n;i>=1;i--){
        if(b[now]<a[i]){
            if(flag){
                cout<<"-1"<<endl;
                return 0;
            }
            else {
                ans=a[i];
                flag=1;
            }
        }
        else{
            now--;
        }
    }
    cout<<ans<<endl;
    return 0;
}

Submission Info

Judge Result