Submission

Score: 100

User: faofao

Problemset: อนุกรม

Language: c

Time: 0.002 second

Submitted On: 2025-10-11 09:17:32

#include <stdio.h>
#define ll long long

int main(){
    long long n;
    long long a=0;
    long long b=1;
    long long c;
    scanf("%lld" , &n);
    for(long long i=0 ; i<n-1 ; i++){
        c=a+b;
        a=b;
        b=c;
    }
    printf("%lld\n" ,c) ;
}