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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. typedef long long ll;
  4. const int Mod=1e9+7;
  5. const ll INF = -10000000000000;
  6.  
  7. void solve() {
  8.    int n;
  9.    cin >> n;
  10.    vector<int> dp(n+1,0);
  11.    for(int i=1;i<7;i++) dp[i]=(1<<(i-1));
  12.    for(int i=7;i<=n;i++){
  13.       for(int j=1;j<=6;j++)
  14.          dp[i]+=dp[i-j]%Mod;
  15.    }
  16.    cout << dp[n]%Mod;
  17. }       
  18.  
  19. int main(){ 
  20.     ios::sync_with_stdio(false);
  21.     cin.tie(nullptr);
  22.  
  23.     /*int t;
  24.     cin >> t;
  25.     while (t--)*/ solve();
  26.  
  27.  
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin 
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stdout 
492
https://ideone.com/PhsAOl
language:
C++ (gcc 8.3)
created:
13 days ago
visibility:
public

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