Submission #22,173

2026-01-14 17:35:25

cpp17

Accepted 30/30

3ms

1076 KiB

// UUID: 93e11d59-30da-4702-a190-7f87af08515d
#include <bits/stdc++.h>
using namespace std;



int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
	int n;
    cin>>n;
    vector<int> a(n+1),b(n+1);
    a[1]=2;a[2]=11;
    b[1]=1;b[2]=4;
    
    for(int i=3;i<=n;i++){
        b[i]=(a[i-1]+a[i-2]+b[i-1])%2023;
        a[i]=(a[i-1]+b[i-1]*3+b[i]+a[i-2]*2)%2023;
        //cout<<i<<": "<<a[i]<<" "<<b[i]<<"\n";
    }
    cout<<a[n];

}

	Sum	Test	Verdict		Time	Memory
base	30/30
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	2/2	1ms	316 KiB
		4	Accepted	2/2	1ms	316 KiB
		5	Accepted	2/2	1ms	500 KiB
		6	Accepted	2/2	1ms	508 KiB
		7	Accepted	2/2	1ms	316 KiB
		8	Accepted	2/2	1ms	316 KiB
		9	Accepted	2/2	2ms	564 KiB
		10	Accepted	2/2	2ms	756 KiB
		11	Accepted	2/2	3ms	820 KiB
		12	Accepted	3/3	3ms	820 KiB
		13	Accepted	3/3	1ms	316 KiB
		14	Accepted	3/3	1ms	316 KiB
		15	Accepted	3/3	3ms	1076 KiB