mirror of
https://git.sb/baoshuo/OI-codes.git
synced 2024-12-25 17:12:02 +00:00
15 lines
269 B
C++
15 lines
269 B
C++
#include <bits/stdc++.h>
|
|
|
|
using namespace std;
|
|
|
|
int n, dp[1000009];
|
|
|
|
int main() {
|
|
dp[1] = 1, dp[2] = 2, dp[3] = 5;
|
|
cin >> n;
|
|
for (int i = 4; i <= n; i++) {
|
|
dp[i] = (dp[i - 1] * 2 + dp[i - 3]) % 10000;
|
|
}
|
|
cout << dp[n] << endl;
|
|
return 0;
|
|
} |