Submission #3,671

2023-03-02 10:29:23

cpp17

Accepted 80/80

30ms

18784 KiB

#include <bits/stdc++.h>
using namespace std;
int mod=20210108;
int main() {
	int n;
	cin >> n;
	vector<long long>v(n);
	v[0]=3;
	v[1]=10;
	for(int i=2;i<n;i++){
		v[i]=(v[i-1]*3+v[i-2])%mod;
	}
	cout << v[n-1];
}

	Sum	Test	Verdict		Time	Memory
base	80/80
		1	Accepted	0/0	3ms	1680 KiB
		2	Accepted	0/0	3ms	1860 KiB
		3	Accepted	4/4	2ms	2056 KiB
		4	Accepted	4/4	2ms	2272 KiB
		5	Accepted	5/5	2ms	2480 KiB
		6	Accepted	5/5	2ms	2696 KiB
		7	Accepted	6/6	30ms	18428 KiB
		8	Accepted	6/6	6ms	4996 KiB
		9	Accepted	7/7	2ms	3272 KiB
		10	Accepted	7/7	3ms	3268 KiB
		11	Accepted	8/8	8ms	6564 KiB
		12	Accepted	8/8	29ms	18784 KiB
		13	Accepted	8/8	27ms	17292 KiB
		14	Accepted	8/8	12ms	8744 KiB
		15	Accepted	2/2	2ms	3696 KiB
		16	Accepted	2/2	2ms	3804 KiB