Cod sursa(job #3310701)

Utilizator WiseAndrei4Vetrila Andrei WiseAndrei4 Data 15 septembrie 2025 21:34:34
Problema Nunta Scor 70
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream fin("nunta.in");
ofstream gout("nunta.out");
int main()
{
    fin.tie(0);
    gout.tie(0);
    long long n;
    fin>>n;
    vector<long long>a(n,0);
    a[0]=1;
    a[1]=2;
    for(int i=2; i<n; ++i)a[i]=a[i-1]+a[i-2];
    gout<<a[n-1];
    return 0;
}