Submission

Score: 100

User: KurtCobain

Problemset: อนุกรม

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-02 20:50:56

#include <iostream>
#include <vector>
using namespace std;

int main(){
     int n;
     cin >> n;
     vector<long long> gen_forlife = {1,1};
     long long prev = gen_forlife[0];
     long  long next = gen_forlife[1];
     for (int i=0;i<=150;i++){
       long long new_add = prev + next;
       gen_forlife.push_back(new_add);
       long long temp = next;
       next = new_add;
       prev = temp;
     }
     cout << gen_forlife[n-1];
}