Submission #16,359

2025-04-28 18:39:04

cpp17

Accepted 50/50

189ms

10292 KiB

// UUID: 0e42dd5e-fdff-49fc-b76e-3f459d08c47b
#include <bits/stdc++.h>
using namespace std;
#define int int64_t

int32_t main() {
    cin.tie(0), ios::sync_with_stdio(0);
    int n;
    cin >> n;
    vector<int> a(n);
    set<int> s;
    for (int& x : a) {
        cin >> x;
        s.insert(x);
    }
    for (int i = n - 1; i >= 0; i--) {
        s.erase(a[i]);
        if (s.empty()) {
            cout << i + 1 << "\n";
            return 0;
        }
    }
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	9ms	820 KiB
		3	Accepted	5/5	2ms	316 KiB
		4	Accepted	5/5	2ms	316 KiB
		5	Accepted	5/5	32ms	2036 KiB
		6	Accepted	5/5	34ms	1844 KiB
		7	Accepted	4/4	153ms	7924 KiB
		8	Accepted	4/4	146ms	7708 KiB
		9	Accepted	4/4	131ms	6708 KiB
		10	Accepted	4/4	123ms	6196 KiB
		11	Accepted	4/4	112ms	5676 KiB
		12	Accepted	2/2	137ms	6036 KiB
		13	Accepted	2/2	180ms	10292 KiB
		14	Accepted	1/1	180ms	10160 KiB
		15	Accepted	1/1	189ms	9976 KiB
		16	Accepted	1/1	165ms	8496 KiB
		17	Accepted	1/1	122ms	6644 KiB
		18	Accepted	1/1	63ms	2356 KiB
		19	Accepted	1/1	54ms	2100 KiB