Submission

Score: 100

User: FIrmTInn

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-10 09:45:06

#include<iostream>
using namespace std;
long long fibo(int n){
    if(n==0)return 0;
    else if(n==1)return 1;
    long long a=0,b=1,c;
    for(int i=2;i<=n;i++){
        c = a+b;
        a = b;
        b = c;
    }
    return b;

}
int main(){
    int n;
    cin >> n;
    cout << fibo(n);
    return 0;
}