#include "Alice.h"
#include <bits/stdc++.h>
#include <vector>
using namespace std;
// you may define some global variables, but it does not work if you try to transfer any information from function
// Alice() to function Bob() through these variables. you had better not use the same global variables in function
// Alice() and in function Bob().
vector<pair<int, int>> Alice()
{
long long x = setN(5000);
vector<pair<int, int>> ans;
for (long long i = 0; i < 5000; i++)
{
if (i == x)
{
continue;
}
ans.push_back({min(i, x), max(i, x)});
}
return ans;
}
#include "Bob.h"
#include <bits/stdc++.h>
#include <vector>
using namespace std;
// you may define some global variables, but it does not work if you try to transfer any information from function
// Alice() to function Bob() through these variables. you had better not use the same global variables in function
// Alice() and in function Bob().
long long Bob(std::vector<std::pair<int, int>> V)
{
map<int, int> mp;
int ans = 0;
for (int i = 0; i < V.size(); ++i)
{
mp[V[i].first]++;
mp[V[i].second]++;
if (mp[V[i].first] > 1)
{
ans = V[i].first;
}
else if (mp[V[i].second] > 1)
{
ans = V[i].second;
}
}
return ans; // change this into your code
}
