Submission

Score: 100

User: Gunto

Problemset: อนุกรม

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-12 16:10:19

#include<stdio.h>

int main(){
    int n;
    scanf("%d",&n);
    long long a,b,c;
    for(int i=1;i<=n;++i){
        if(i==1||i==2){
            a=1;
            b=1;
            c=1;
        }else{
            c=a+b;
            a=b;
            b=c;
        }

    }printf("%lld",c);


    return 0;
}