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P1990 覆盖墙壁

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Baoshuo Ren 2021-01-03 21:38:43 +08:00 committed by Baoshuo Ren
parent 7ef2844a8e
commit 144492f9d4
Signed by: baoshuo
GPG Key ID: 70F90A673FB1AB68
1 changed files with 15 additions and 0 deletions
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Luogu/problem/P1990/P1990.cpp Normal file
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#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;
}