Submission #22,200

2026-01-14 17:46:55

cpp17

Accepted 30/30

3ms

1076 KiB

// UUID: 92792bde-3e4b-4d69-a23e-b7f4f5894071
#include <bits/stdc++.h>
using namespace std;

void solve() {
    int n;
    cin >> n;

    vector<int> a(n + 1);
    vector<int> b(n + 1);

    a[0] = 1;
    a[1] = 2;
    b[1] = 1;

    for (int i = 2; i <= n; i++) {
        b[i] = (a[i-2] + a[i-1] + b[i-1]) % 2023;
        a[i] = (a[i-1] + 3*b[i-1] + b[i] + a[i-2] + a[i-2]) % 2023;
    }

    cout << a[n];
    return;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int t = 1;
    //cin >> t;
    while (t--) {
        solve();
    }
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	30/30
		1	Accepted	0/0	1ms	500 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	2/2	1ms	316 KiB
		4	Accepted	2/2	1ms	512 KiB
		5	Accepted	2/2	1ms	316 KiB
		6	Accepted	2/2	1ms	316 KiB
		7	Accepted	2/2	1ms	316 KiB
		8	Accepted	2/2	1ms	316 KiB
		9	Accepted	2/2	2ms	636 KiB
		10	Accepted	2/2	1ms	568 KiB
		11	Accepted	2/2	2ms	820 KiB
		12	Accepted	3/3	3ms	824 KiB
		13	Accepted	3/3	2ms	512 KiB
		14	Accepted	3/3	1ms	332 KiB
		15	Accepted	3/3	3ms	1076 KiB