Submission

Score: 100

User: winkawin2552

Problemset: อนุกรม

Language: c

Time: 0.003 second

Submitted On: 2025-10-10 15:03:04

#include <stdio.h>

//1 1 2 3 5 8 13 21 

long long fib(int n){
    long long a = 0, b = 1;
    for(int i = 0; i<n; i++){
        long long temp = b;
        b= a+b;
        a = temp;
    } return a;
}

int main(){
    int n;
    scanf("%d", &n);
    printf("%lld", fib(n));
    return 0;
}