Submission #64061218

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#include<bits/stdc++.h>
#define ll long long int
const int N = 3e5 + 10;
using namespace std;
ll a[N];
int main()
{
  int n;
  cin >> n;
  map<int, int> mp;
  for(int i = 1; i <= n; i++)
  {
    cin >> a[i];
    mp[a[i]] ++;
  }
  int ans = -1;
  int maxk = INT_MIN;
  for(int i = 1; i <= n; i++)
  {
    if(mp[a[i]] == 1)
    {
 
 
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#include<bits/stdc++.h>
#define ll long long int
const int N = 3e5 + 10;
using namespace std;
ll a[N];
int main()
{
	int n;
	cin >> n;
	map<int, int> mp;
	for(int i = 1; i <= n; i++)
	{
		cin >> a[i];
		mp[a[i]] ++;
	}
	int ans = -1;
	int maxk = INT_MIN;
	for(int i = 1; i <= n; i++)
	{
		if(mp[a[i]] == 1)
		{
			if(a[i] > maxk)
			{
				ans = i;
				maxk = a[i];
			}
		}
	}
	cout << ans << endl;
	return 0;
 } 

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