Submission #21,274

2026-01-12 17:40:45

cpp17

Accepted 30/30

4ms

1076 KiB

// UUID: 8bf23e07-3a2e-4b35-90f4-474abf3cd209
#include <bits/stdc++.h>
using namespace std;
int mod = 2023;

int main() {
	ios::sync_with_stdio(false); cin.tie(0);
	int n; cin >> n;
	vector<array<int, 2>> dp (n+1);
	dp[0][0] = 1;
	dp[0][1] = 1;
	dp[1][0] = 1;
	dp[1][1] = 2;
	for (int i = 2; i <= n; i++) {
		dp[i][0] = (dp[i-1][1] + dp[i-1][0] + dp[i-2][1]) % mod;
		dp[i][1] = (dp[i][0] + dp[i-1][1] + 2*dp[i-2][1] + 3*dp[i-1][0]) % mod;
	}
	cout << dp[n][1];
}

	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	500 KiB
		4	Accepted	2/2	1ms	316 KiB
		5	Accepted	2/2	1ms	324 KiB
		6	Accepted	2/2	1ms	500 KiB
		7	Accepted	2/2	1ms	316 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	3ms	824 KiB
		12	Accepted	3/3	4ms	820 KiB
		13	Accepted	3/3	1ms	316 KiB
		14	Accepted	3/3	1ms	316 KiB
		15	Accepted	3/3	4ms	1076 KiB