Submission #23,571

2026-01-25 10:01:46

cpp17

Wrong answer 18/50

17ms

4148 KiB

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

int MOD=20201114;


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)%MOD;
        }
    cout<<dp[n];
}

	Sum	Test	Verdict		Time	Memory
base	18/50
		1	Accepted	0/0	1ms	512 KiB
		2	Wrong answer	0/0	1ms	316 KiB
		3	Accepted	3/3	1ms	316 KiB
		4	Accepted	3/3	1ms	316 KiB
		5	Wrong answer	0/4	1ms	316 KiB
		6	Wrong answer	0/4	1ms	316 KiB
		7	Wrong answer	0/4	17ms	4148 KiB
		8	Wrong answer	0/4	3ms	820 KiB
		9	Accepted	4/4	1ms	316 KiB
		10	Accepted	4/4	1ms	316 KiB
		11	Wrong answer	0/4	4ms	1080 KiB
		12	Wrong answer	0/4	17ms	4148 KiB
		13	Wrong answer	0/4	17ms	3848 KiB
		14	Wrong answer	0/4	7ms	1752 KiB
		15	Accepted	2/2	1ms	316 KiB
		16	Accepted	2/2	1ms	508 KiB