Submission #22,181

2026-01-14 17:37:52

cpp17

Accepted 30/30

3ms

980 KiB

// UUID: 35fabcf8-9ac6-4d63-aaff-1d24c477d2b5
#include <bits/stdc++.h>
using namespace std;

const int MOD = 2023;

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;
    if (n < 3){
        cout << a[n];
        return 0; 
    }
    else {
        for (int i = 3; i <= n; i++){
            b[i] = (a[i - 1] + a[i - 2] + b[i - 1]) % MOD;
            a[i] = (a[i - 1] + 2 * a[i - 2] + b[i] + 3 * b[i - 1]) % MOD;
        }
    }
    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	508 KiB
		4	Accepted	2/2	1ms	316 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	1ms	636 KiB
		10	Accepted	2/2	1ms	564 KiB
		11	Accepted	2/2	2ms	820 KiB
		12	Accepted	3/3	2ms	820 KiB
		13	Accepted	3/3	1ms	316 KiB
		14	Accepted	3/3	1ms	316 KiB
		15	Accepted	3/3	3ms	980 KiB