Submission #5,914

2023-10-05 16:28:05

cpp17

Accepted 40/40

4ms

4900 KiB

#include <bits/stdc++.h>
using namespace std;
#define f(i,k,n) for(int i=k; i<n; i++)
#define ll long long
const int inf = INT_MAX;

void solve()
{
    int n;
    cin>>n;
    vector<int> a(n+1,0);
    a[0]=2;
    a[1]=2;
    a[2]=4;
    f(i,3,n+1)  a[i]=(a[i-2]*2 + a[i-3]*2)%20210108;
    cout<<a[n-2]%20210108;
}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t=1;
    //cin>>t;
    while(t--)  solve();
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	3ms	2016 KiB
		2	Accepted	0/0	3ms	2108 KiB
		3	Accepted	2/2	2ms	2324 KiB
		4	Accepted	2/2	2ms	2332 KiB
		5	Accepted	3/3	2ms	2336 KiB
		6	Accepted	3/3	2ms	2340 KiB
		7	Accepted	3/3	4ms	3684 KiB
		8	Accepted	3/3	3ms	3360 KiB
		9	Accepted	3/3	3ms	2708 KiB
		10	Accepted	3/3	2ms	2920 KiB
		11	Accepted	3/3	4ms	4436 KiB
		12	Accepted	3/3	4ms	4648 KiB
		13	Accepted	4/4	4ms	4900 KiB
		14	Accepted	4/4	3ms	4468 KiB
		15	Accepted	2/2	3ms	3832 KiB
		16	Accepted	2/2	3ms	4060 KiB