Submission

Score: 50

User: IIIIIIIIIIII

Problemset: อนุกรม

Language: cpp

Time: 0.005 second

Submitted On: 2026-10-15 13:34:33

#include <iostream>
using namespace std;

int n, a0=1, a1=1;
void sum(int n){
    if(n==1) cout << n;
    else{
        for(int i=2;i<n;i++){
            int temp = a0+a1;
            a0 = a1;
            a1 = temp;
        }cout <<  a1;
    }
}

int main(){
    cin >> n;
    sum(n);
}