Submission #12,283

2024-12-11 11:31:38

cpp17

Accepted 50/50

8ms

4168 KiB

#include <iostream>

using namespace std;
int a[1000001]={0};
int main()
{
    int n;
    cin>>n;
    a[1]=2; a[2]=4; a[3]=10;
    for(int i=4;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	500 KiB
		2	Accepted	0/0	1ms	320 KiB
		3	Accepted	3/3	1ms	512 KiB
		4	Accepted	3/3	1ms	320 KiB
		5	Accepted	4/4	1ms	320 KiB
		6	Accepted	4/4	1ms	320 KiB
		7	Accepted	4/4	8ms	4080 KiB
		8	Accepted	4/4	2ms	824 KiB
		9	Accepted	4/4	1ms	320 KiB
		10	Accepted	4/4	1ms	320 KiB
		11	Accepted	4/4	2ms	1080 KiB
		12	Accepted	4/4	8ms	4168 KiB
		13	Accepted	4/4	8ms	3640 KiB
		14	Accepted	4/4	4ms	1592 KiB
		15	Accepted	2/2	1ms	320 KiB
		16	Accepted	2/2	1ms	500 KiB