Submission #23,078

2026-01-16 11:42:26

cpp17

Accepted 30/30

4ms

1084 KiB

#include <bits/stdc++.h>
using namespace std;
#define int int64_t

const int MOD = 2023;

int32_t main() {
    cin.tie(0), ios::sync_with_stdio(0);
    int n;
    cin >> n;
    vector<int> dp(n + 1);
    dp[0] = 1;
    int ps = 0;
    for (int i = 1; i <= n; i++) {
        (dp[i] += 2 * dp[i - 1]) %= MOD;
        if (i >= 2) (dp[i] += 7 * dp[i - 2]) %= MOD;
        if (i >= 3) (ps += 8 * dp[i - 3]) %= MOD;
        (dp[i] += ps) %= MOD;
    }
    cout << dp[n] << "\n";
}

	Sum	Test	Verdict		Time	Memory
base	30/30
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	2/2	1ms	316 KiB
		4	Accepted	2/2	1ms	316 KiB
		5	Accepted	2/2	1ms	316 KiB
		6	Accepted	2/2	1ms	316 KiB
		7	Accepted	2/2	1ms	508 KiB
		8	Accepted	2/2	1ms	316 KiB
		9	Accepted	2/2	2ms	564 KiB
		10	Accepted	2/2	2ms	564 KiB
		11	Accepted	2/2	4ms	820 KiB
		12	Accepted	3/3	3ms	820 KiB
		13	Accepted	3/3	1ms	316 KiB
		14	Accepted	3/3	1ms	316 KiB
		15	Accepted	3/3	4ms	1084 KiB