Submission #8,766

2024-01-29 15:20:23

cpp17

Accepted 50/50

18ms

18668 KiB

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

int main() {
	unsigned long long n; cin >> n;
	vector<unsigned long long> dp(n+1, 0);
	dp[0] = 1;
	dp[1] = 2;
	dp[2] = 4;
	for (unsigned long long i = 3; i <= n; i++) {
		dp[i] = ((2 * dp[i-1]) % 20210108 + (2 * dp[i-3]) % 20210108) % 20210108;
	}
	cout << dp[n];
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	3ms	1680 KiB
		2	Accepted	0/0	3ms	1944 KiB
		3	Accepted	3/3	3ms	2144 KiB
		4	Accepted	3/3	3ms	2360 KiB
		5	Accepted	4/4	2ms	2384 KiB
		6	Accepted	4/4	3ms	2592 KiB
		7	Accepted	4/4	18ms	18200 KiB
		8	Accepted	4/4	4ms	4760 KiB
		9	Accepted	4/4	3ms	2968 KiB
		10	Accepted	4/4	3ms	3092 KiB
		11	Accepted	4/4	6ms	6144 KiB
		12	Accepted	4/4	18ms	18668 KiB
		13	Accepted	4/4	17ms	16932 KiB
		14	Accepted	4/4	8ms	8388 KiB
		15	Accepted	2/2	2ms	3396 KiB
		16	Accepted	2/2	3ms	3640 KiB