Submission #8,097

2024-01-12 13:06:24

cpp17

Accepted 40/40

3ms

3984 KiB

#include <bits/stdc++.h>
#define MOD 20200111LL
#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);
    vector<ll> b(N + 1);
    a[0] = 1;
    a[1] = 1;
    a[2] = 2;
    b[0] = 1;
    b[1] = 0;
    b[2] = 2;
    for(i = 3; i <= N; i++) {
        a[i] = (a[i - 1] + a[i - 2] + b[i - 1]) % MOD;
        b[i] = (b[i - 2] + b[i - 1] + 2 * a[i - 2]) % MOD;
    }
    cout << a[N] << '\n';
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	3ms	1832 KiB
		2	Accepted	0/0	3ms	2032 KiB
		3	Accepted	1/1	3ms	2236 KiB
		4	Accepted	1/1	3ms	2468 KiB
		5	Accepted	2/2	3ms	2704 KiB
		6	Accepted	2/2	3ms	2932 KiB
		7	Accepted	3/3	3ms	2896 KiB
		8	Accepted	3/3	3ms	3024 KiB
		9	Accepted	3/3	3ms	3228 KiB
		10	Accepted	3/3	3ms	3308 KiB
		11	Accepted	3/3	3ms	3444 KiB
		12	Accepted	3/3	3ms	3532 KiB
		13	Accepted	3/3	3ms	3520 KiB
		14	Accepted	3/3	3ms	3756 KiB
		15	Accepted	3/3	3ms	3984 KiB
		16	Accepted	3/3	3ms	3972 KiB
		17	Accepted	4/4	3ms	3976 KiB