Submission #23,543

2026-01-24 14:58:37

cpp17

Accepted 80/80

14ms

8244 KiB

#include <bits/stdc++.h>
using namespace std;

int main() {
	int n;cin >> n;
    vector<long long>dp(n+1);
    dp[1]= 3;dp[0]= 1;
    for(int i = 2;i <=n;i++){
        dp[i]=(dp[i-1]*3+dp[i-2])%20210108;
    }
    cout << dp[n];
}

	Sum	Test	Verdict		Time	Memory
base	80/80
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	1ms	528 KiB
		3	Accepted	4/4	1ms	316 KiB
		4	Accepted	4/4	1ms	316 KiB
		5	Accepted	5/5	1ms	316 KiB
		6	Accepted	5/5	2ms	316 KiB
		7	Accepted	6/6	14ms	8244 KiB
		8	Accepted	6/6	3ms	1348 KiB
		9	Accepted	7/7	1ms	316 KiB
		10	Accepted	7/7	1ms	316 KiB
		11	Accepted	8/8	4ms	1844 KiB
		12	Accepted	8/8	14ms	8152 KiB
		13	Accepted	8/8	13ms	7272 KiB
		14	Accepted	8/8	6ms	3048 KiB
		15	Accepted	2/2	1ms	316 KiB
		16	Accepted	2/2	1ms	500 KiB