Submission #1,564

2022-11-25 12:03:07

cpp11

Accepted 40/40

3ms

4072 KiB

#include <iostream>
#include <vector>
using namespace std;
vector<long long> x,y;
int n,i,j;
long long s;
int main()
{
    cin>>n;
    x.resize(n+1);
    y.resize(n+1);
    x[1]=1;
    x[2]=2;
    y[2]=2;
    for(i=3; i<=n; ++i)
    {
        x[i]=x[i-1]+x[i-2]+y[i-1];
        y[i]=2*x[i-2]+y[i-1];
    }
    cout<<x[n];
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	3ms	1744 KiB
		2	Accepted	0/0	2ms	1996 KiB
		3	Accepted	2/2	2ms	2068 KiB
		4	Accepted	2/2	2ms	2080 KiB
		5	Accepted	2/2	2ms	2208 KiB
		6	Accepted	2/2	2ms	2416 KiB
		7	Accepted	2/2	2ms	2536 KiB
		8	Accepted	3/3	2ms	2592 KiB
		9	Accepted	3/3	2ms	2832 KiB
		10	Accepted	3/3	2ms	2924 KiB
		11	Accepted	3/3	2ms	3128 KiB
		12	Accepted	3/3	2ms	3240 KiB
		13	Accepted	3/3	2ms	3448 KiB
		14	Accepted	3/3	2ms	3680 KiB
		15	Accepted	3/3	2ms	3680 KiB
		16	Accepted	3/3	2ms	3872 KiB
		17	Accepted	3/3	2ms	4072 KiB