Submission #3,131

2023-02-19 12:14:24

cpp17

Accepted 50/50

20ms

11076 KiB

#include <bits/stdc++.h>
using namespace std;
int mod=20210108;
int main() {
	int n;
	cin>>n;
	vector<int> dp(n+1);
	dp[0]=1; 
	dp[1]=2;
	dp[2]=4;
	for (int i=3; i<=n;i++){
		dp[i]=dp[i-1]*2+dp[i-3]*2;
		dp[i]=dp[i]%mod;
	}
	cout<<dp[n];
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	3ms	1808 KiB
		2	Accepted	0/0	3ms	2016 KiB
		3	Accepted	3/3	2ms	2096 KiB
		4	Accepted	3/3	2ms	2092 KiB
		5	Accepted	4/4	3ms	2336 KiB
		6	Accepted	4/4	3ms	2576 KiB
		7	Accepted	4/4	20ms	10548 KiB
		8	Accepted	4/4	4ms	3588 KiB
		9	Accepted	4/4	3ms	2860 KiB
		10	Accepted	4/4	3ms	3096 KiB
		11	Accepted	4/4	6ms	4536 KiB
		12	Accepted	4/4	20ms	11076 KiB
		13	Accepted	4/4	18ms	10176 KiB
		14	Accepted	4/4	8ms	5968 KiB
		15	Accepted	2/2	3ms	3572 KiB
		16	Accepted	2/2	3ms	3696 KiB