| 21629 | 2026-01-13 17:29:48 | algopro | Járda-L (40) | cpp17 | Forditási hiba |
// UUID: fa9e560c-02bf-479a-b7f0-de5c40e1309e
#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
cin>>n;
long long dp[29]={0};
dp[0]=1;
dp[1]=1;
dp[2]=2;
for (int i=3;i<=n;i++){
dp[i]=2* db[i-1] + dp[i-3];
}
cout<<dp[n];
return 0;
}
open /var/local/lib/isolate/443/box/a.out: no such file or directory
main.cpp: In function 'int main()':
main.cpp:13:26: error: 'db' was not declared in this scope; did you mean 'dp'?
13 | dp[i]=2* db[i-1] + dp[i-3];
| ^~
| dp