Submission

Score: 100

User: kinzap

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-12 12:52:18

#include <stdio.h>

long long n,a=0,b=1,c;

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