Submission #17,572

2025-07-24 13:39:27

cpp17

Accepted 50/50

10ms

4304 KiB

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin >> n;n--;
    int a[n] = {2, 4, 10};
    for(int i=3; i<=n; i++)a[i] = (2*a[i-1]+2*a[i-3])%20210108;
    cout << a[n];
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	3/3	1ms	316 KiB
		4	Accepted	3/3	1ms	316 KiB
		5	Accepted	4/4	1ms	316 KiB
		6	Accepted	4/4	1ms	316 KiB
		7	Accepted	4/4	9ms	4304 KiB
		8	Accepted	4/4	2ms	820 KiB
		9	Accepted	4/4	1ms	332 KiB
		10	Accepted	4/4	1ms	508 KiB
		11	Accepted	4/4	3ms	1076 KiB
		12	Accepted	4/4	10ms	4252 KiB
		13	Accepted	4/4	8ms	3824 KiB
		14	Accepted	4/4	4ms	1588 KiB
		15	Accepted	2/2	1ms	316 KiB
		16	Accepted	2/2	1ms	316 KiB