Submission #2,371

2023-01-11 20:01:13

cpp11

Accepted 40/40

4ms

6496 KiB

#include <bits/stdc++.h>

using namespace std;

typedef long long int ll;

const int MOD = 20210108;
const int MAXN = 200000;

ll dp[MAXN+1];

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    int n;
    cin >> n;

    dp[0] = 1;
    dp[1] = 0;
    for(int i = 2; i <= n; i++){
        dp[i] = (dp[i-2]*2 + dp[i-3]*2)%MOD;
    }
    cout << dp[n] << "\n";
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	3ms	1896 KiB
		2	Accepted	0/0	2ms	2264 KiB
		3	Accepted	2/2	2ms	2420 KiB
		4	Accepted	2/2	2ms	2504 KiB
		5	Accepted	3/3	2ms	2572 KiB
		6	Accepted	3/3	2ms	2816 KiB
		7	Accepted	3/3	4ms	6104 KiB
		8	Accepted	3/3	3ms	4964 KiB
		9	Accepted	3/3	2ms	3252 KiB
		10	Accepted	3/3	2ms	3456 KiB
		11	Accepted	3/3	4ms	6496 KiB
		12	Accepted	3/3	4ms	6336 KiB
		13	Accepted	4/4	4ms	6256 KiB
		14	Accepted	4/4	3ms	5808 KiB
		15	Accepted	2/2	2ms	3664 KiB
		16	Accepted	2/2	2ms	3880 KiB