Submission #16,440

2025-04-30 16:19:36

cpp17

Accepted 50/50

212ms

9524 KiB

// UUID: fe59a83b-4115-4057-a624-fe462618bd82
#include <bits/stdc++.h>
using namespace std;


int main() {
    int n;
    cin >> n;
    vector<int> years(n);
    for (int i = 0; i < n; ++i) {
        cin >> years[i];
    }
    set<int> seen;
    int answer = 0;
    for (int i = n - 1; i >= 0; --i) {
        if (seen.find(years[i]) == seen.end()) {
            seen.insert(years[i]);
            answer = i;
        }
    }

    cout << answer + 1 << '\n'; 
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	10ms	820 KiB
		3	Accepted	5/5	1ms	316 KiB
		4	Accepted	5/5	1ms	316 KiB
		5	Accepted	5/5	67ms	1192 KiB
		6	Accepted	5/5	67ms	1268 KiB
		7	Accepted	4/4	155ms	7088 KiB
		8	Accepted	4/4	156ms	6828 KiB
		9	Accepted	4/4	152ms	6060 KiB
		10	Accepted	4/4	146ms	5428 KiB
		11	Accepted	4/4	137ms	4660 KiB
		12	Accepted	2/2	162ms	5172 KiB
		13	Accepted	2/2	212ms	9524 KiB
		14	Accepted	1/1	210ms	9268 KiB
		15	Accepted	1/1	199ms	9268 KiB
		16	Accepted	1/1	187ms	7476 KiB
		17	Accepted	1/1	165ms	5428 KiB
		18	Accepted	1/1	123ms	1588 KiB
		19	Accepted	1/1	116ms	1332 KiB