Submission #22,718

2026-01-15 17:10:02

cpp17

Accepted 30/30

3ms

1092 KiB

// UUID: 67260a5c-274b-4e6a-8faf-17a1f5889794
#include <bits/stdc++.h>
using namespace std;

int main() {
	int n; cin>>n;
	if(n==1){
		cout<<2; return 0;
	}
	vector<int>dpa(n+1);
	vector<int>dpb(n+1);
	dpa[0]=0;
	dpb[0]=1;
	dpa[1]=1;
	dpb[1]=2;
	for(int i=2; i<n+1; i++){
		dpa[i]=(dpb[i-1]+dpa[i-1]+dpb[i-2])%2023;
		dpb[i]=(3*dpa[i-1]+2*dpb[i-2]+dpb[i-1]+dpa[i])%2023;
	}
	cout<<dpb[n];
}

	Sum	Test	Verdict		Time	Memory
base	30/30
		1	Accepted	0/0	1ms	512 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	2/2	1ms	316 KiB
		4	Accepted	2/2	1ms	500 KiB
		5	Accepted	2/2	1ms	316 KiB
		6	Accepted	2/2	1ms	316 KiB
		7	Accepted	2/2	1ms	316 KiB
		8	Accepted	2/2	1ms	508 KiB
		9	Accepted	2/2	2ms	564 KiB
		10	Accepted	2/2	2ms	884 KiB
		11	Accepted	2/2	2ms	932 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	1092 KiB