Submission #2,927

2023-02-04 14:59:53

cpp17

Accepted 40/40

3ms

3664 KiB

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

int main() {
	int n;
	cin>>n;
	vector<int> dp={1,1,2};
	int cnt=0; 
	for (int i=3; i<=n;i++){
		int ans=0;
		cnt+=dp[i-3];
		ans+=dp[i-2];
		ans+=dp[i-1];
		ans+=cnt*2;
		dp.push_back(ans);
	}
	cout<<dp[n];
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	3ms	1812 KiB
		2	Accepted	0/0	3ms	2056 KiB
		3	Accepted	2/2	3ms	2264 KiB
		4	Accepted	2/2	2ms	2352 KiB
		5	Accepted	2/2	3ms	2480 KiB
		6	Accepted	2/2	2ms	2636 KiB
		7	Accepted	2/2	2ms	2720 KiB
		8	Accepted	3/3	2ms	2872 KiB
		9	Accepted	3/3	2ms	2812 KiB
		10	Accepted	3/3	2ms	2936 KiB
		11	Accepted	3/3	3ms	3148 KiB
		12	Accepted	3/3	3ms	3236 KiB
		13	Accepted	3/3	2ms	3264 KiB
		14	Accepted	3/3	2ms	3332 KiB
		15	Accepted	3/3	3ms	3328 KiB
		16	Accepted	3/3	3ms	3576 KiB
		17	Accepted	3/3	2ms	3664 KiB