Submission #3,794

2023-03-02 22:27:42

cpp17

Accepted 40/40

3ms

4060 KiB

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

void solve(){
    int n;
    cin>>n;
    vector<int> dp(30);
    dp[0]=1;
    dp[1]=1;
    dp[2]=2;
    for(int i=3; i<=n; i++){
        dp[i]=dp[i-1]*2+dp[i-3];
    }
    cout<<dp[n];
    return;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    solve();
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	3ms	1832 KiB
		2	Accepted	0/0	3ms	2052 KiB
		3	Accepted	2/2	3ms	2540 KiB
		4	Accepted	2/2	2ms	2552 KiB
		5	Accepted	2/2	2ms	2776 KiB
		6	Accepted	2/2	3ms	2908 KiB
		7	Accepted	2/2	3ms	3108 KiB
		8	Accepted	3/3	2ms	3196 KiB
		9	Accepted	3/3	3ms	3412 KiB
		10	Accepted	3/3	2ms	3380 KiB
		11	Accepted	3/3	2ms	3388 KiB
		12	Accepted	3/3	2ms	3604 KiB
		13	Accepted	3/3	2ms	3824 KiB
		14	Accepted	3/3	2ms	3824 KiB
		15	Accepted	3/3	3ms	4048 KiB
		16	Accepted	3/3	2ms	4060 KiB
		17	Accepted	3/3	2ms	4044 KiB