Submission #7,138

2023-12-31 12:40:30

cpp17

Accepted 40/40

3ms

4160 KiB

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

int main() {
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	int n;
	cin >> n;
	vector<int> dp(n+1);
	dp[0] = 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] << '\n';


	return 0;
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	3ms	1824 KiB
		2	Accepted	0/0	3ms	2064 KiB
		3	Accepted	2/2	3ms	2232 KiB
		4	Accepted	2/2	3ms	2464 KiB
		5	Accepted	2/2	3ms	2564 KiB
		6	Accepted	2/2	3ms	2732 KiB
		7	Accepted	2/2	3ms	2940 KiB
		8	Accepted	3/3	3ms	3148 KiB
		9	Accepted	3/3	3ms	3236 KiB
		10	Accepted	3/3	3ms	3236 KiB
		11	Accepted	3/3	3ms	3492 KiB
		12	Accepted	3/3	3ms	3716 KiB
		13	Accepted	3/3	3ms	3604 KiB
		14	Accepted	3/3	3ms	3836 KiB
		15	Accepted	3/3	3ms	3824 KiB
		16	Accepted	3/3	3ms	3948 KiB
		17	Accepted	3/3	3ms	4160 KiB