Submission #7,364

2024-01-08 11:20:28

cpp17

Accepted 40/40

4ms

6408 KiB

#include <bits/stdc++.h>
#define MOD 20210108LL
#define FastIO ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
using namespace std;
typedef long long ll;
int main() {
    FastIO;
    ll i, N;
    cin >> N;
    vector<ll> a(N + 1);
    a[0] = 1;
    a[1] = 0;
    a[2] = 2;
    a[3] = 2;
    for(i = 4; i <= N; i++)
        a[i] = (2 * a[i - 2] + 2 * a[i - 3]) % MOD;
    cout << a[N] << '\n';
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	3ms	1828 KiB
		2	Accepted	0/0	3ms	2200 KiB
		3	Accepted	2/2	3ms	2396 KiB
		4	Accepted	2/2	3ms	2532 KiB
		5	Accepted	3/3	3ms	2748 KiB
		6	Accepted	3/3	3ms	2932 KiB
		7	Accepted	3/3	4ms	6160 KiB
		8	Accepted	3/3	4ms	4836 KiB
		9	Accepted	3/3	3ms	3044 KiB
		10	Accepted	3/3	3ms	3184 KiB
		11	Accepted	3/3	4ms	6176 KiB
		12	Accepted	3/3	4ms	6408 KiB
		13	Accepted	4/4	4ms	6164 KiB
		14	Accepted	4/4	4ms	5416 KiB
		15	Accepted	2/2	3ms	3576 KiB
		16	Accepted	2/2	3ms	3684 KiB