Submission #21,267

2026-01-12 17:36:55

cpp17

Accepted 30/30

14ms

5896 KiB

// UUID: e433622b-9f08-48fe-80e7-584347865309
#include <bits/stdc++.h>
using namespace std;
#define int long long
int MOD=2023;
signed main() {
	int n;
    cin>>n;
    vector<vector<int>>dp(n,vector<int>(2));
    dp[0][0]=1;
    dp[0][1]=2;
    dp[1][0]=4;
    dp[1][1]=11;
    for(int i=2;i<n;i++)
    {
        dp[i][0]=dp[i-1][0]+dp[i-1][1]+dp[i-2][1];
		dp[i][0]%=MOD;
		dp[i][1]=dp[i-1][1]+3*dp[i-1][0]+2*dp[i-2][1]+dp[i][0];
		dp[i][1]%=MOD;
    }
    cout<<dp[n-1][1]<<'\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	552 KiB
		8	Accepted	2/2	1ms	316 KiB
		9	Accepted	2/2	4ms	1928 KiB
		10	Accepted	2/2	6ms	2292 KiB
		11	Accepted	2/2	10ms	4060 KiB
		12	Accepted	3/3	12ms	4660 KiB
		13	Accepted	3/3	2ms	828 KiB
		14	Accepted	3/3	2ms	820 KiB
		15	Accepted	3/3	14ms	5896 KiB