Submission #16,441

2025-04-30 16:54:09

cpp17

Accepted 50/50

212ms

9640 KiB

// UUID: 2bd44920-4ae0-4421-9068-303064ecb62f
#include <bits/stdc++.h>
using namespace std;

int main() {
	int n, a;
	cin >> n;
	vector <int> v(n);
	for(int i = 0; i < n; i++){
		cin >> v[i]; 
	}
	set<int> s;
	for(int i = n - 1; i >= 0; i--){
		if(s.count(v[i]) == 0){
			s.insert(v[i]);
			a = i + 1;
		}
	}
	cout << a;
}

	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	1200 KiB
		6	Accepted	5/5	67ms	1192 KiB
		7	Accepted	4/4	155ms	7080 KiB
		8	Accepted	4/4	156ms	6824 KiB
		9	Accepted	4/4	150ms	5940 KiB
		10	Accepted	4/4	145ms	5428 KiB
		11	Accepted	4/4	138ms	4660 KiB
		12	Accepted	2/2	160ms	5172 KiB
		13	Accepted	2/2	212ms	9640 KiB
		14	Accepted	1/1	210ms	9268 KiB
		15	Accepted	1/1	199ms	9268 KiB
		16	Accepted	1/1	190ms	7732 KiB
		17	Accepted	1/1	165ms	5428 KiB
		18	Accepted	1/1	122ms	1588 KiB
		19	Accepted	1/1	116ms	1332 KiB