Submission

Score: 100

User: por

Problemset: อนุกรม

Language: c

Time: 0.002 second

Submitted On: 2025-09-27 12:28:02

#include<stdio.h>
int main(){

    int x;
    scanf("%d", &x);
    long long arr[100]={};
    arr[0]=1;
    arr[1]=1;

    //printf("%d \n", arr[99]);
    for(int i=2;i<x;i++){
        arr[i]=arr[i-1]+arr[i-2];
        if(i==x-1){
            printf("%lld", arr[i]);
        }
    }
    if(x==2||x==1){
        printf("1");
    }

    return 0;
}