#include <bits/stdc++.h>
using namespace std;
#define int long long
#define double long double
#define pii pair<int, int>
#define MOD 20200111
signed main() {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
#ifdef CB
freopen("be2.txt", "r", stdin);
// freopen("out.txt", "w", stdout);
#endif
int N;
cin >> N;
int a[N + 1][2] {};
a[0][0] = 1;
a[0][1] = 0;
a[1][0] = 1;
a[1][1] = 1;
a[2][0] = 2;
a[2][1] = 2;
for (int i = 3; i <= N; i++) {
a[i][0] = a[i - 1][0] + a[i - 2][1] * 2 + a[i - 2][0];
a[i][1] = a[i - 1][1] + a[i - 1][0] + a[i - 2][1];
a[i][0] %= MOD;
a[i][1] %= MOD;
}
cout << a[N][0] << '\n';
return 0;
}
Részfeladat | Összpont | Teszt | Verdikt | Idő | Memória | ||
---|---|---|---|---|---|---|---|
base | 40/40 | ||||||
1 | Elfogadva | 0/0 | 3ms | 1888 KiB | |||
2 | Elfogadva | 0/0 | 3ms | 2128 KiB | |||
3 | Elfogadva | 1/1 | 3ms | 2336 KiB | |||
4 | Elfogadva | 1/1 | 3ms | 2544 KiB | |||
5 | Elfogadva | 2/2 | 3ms | 2776 KiB | |||
6 | Elfogadva | 2/2 | 3ms | 2928 KiB | |||
7 | Elfogadva | 3/3 | 3ms | 3036 KiB | |||
8 | Elfogadva | 3/3 | 3ms | 3064 KiB | |||
9 | Elfogadva | 3/3 | 3ms | 3120 KiB | |||
10 | Elfogadva | 3/3 | 3ms | 3348 KiB | |||
11 | Elfogadva | 3/3 | 3ms | 3560 KiB | |||
12 | Elfogadva | 3/3 | 3ms | 3776 KiB | |||
13 | Elfogadva | 3/3 | 2ms | 3856 KiB | |||
14 | Elfogadva | 3/3 | 3ms | 3996 KiB | |||
15 | Elfogadva | 3/3 | 3ms | 4208 KiB | |||
16 | Elfogadva | 3/3 | 3ms | 4188 KiB | |||
17 | Elfogadva | 4/4 | 3ms | 4184 KiB |