Submission #20,539

20539

2026-01-07 17:40:23

cpp17

Accepted 50/50

284ms

9524 KiB

#include <iostream>
#include <vector>
#include <set>
using namespace std;

int main()
{
    int n;
    cin >> n;
    vector <int> v(n);
    set <int> t;
    for (int i = 0; i < n; i++)
    {
        cin >> v[i];
        t.insert(v[i]);
    }
    int i = n - 1;
    while (!t.empty())
    {
        if (t.count(v[i]))
        {
            t.erase(v[i]);
        }
        i--;
    }
    cout << i+2;
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	1ms	500 KiB
		2	Accepted	0/0	14ms	820 KiB
		3	Accepted	5/5	2ms	316 KiB
		4	Accepted	5/5	1ms	316 KiB
		5	Accepted	5/5	64ms	1076 KiB
		6	Accepted	5/5	64ms	1076 KiB
		7	Accepted	4/4	224ms	6900 KiB
		8	Accepted	4/4	219ms	6912 KiB
		9	Accepted	4/4	202ms	5940 KiB
		10	Accepted	4/4	189ms	5428 KiB
		11	Accepted	4/4	175ms	4656 KiB
		12	Accepted	2/2	222ms	5164 KiB
		13	Accepted	2/2	280ms	9524 KiB
		14	Accepted	1/1	277ms	9440 KiB
		15	Accepted	1/1	284ms	9268 KiB
		16	Accepted	1/1	241ms	7476 KiB
		17	Accepted	1/1	212ms	5428 KiB
		18	Accepted	1/1	131ms	1588 KiB
		19	Accepted	1/1	122ms	1332 KiB