Submission

Status:

PPPPPPPPPP

Subtask/Task Score:

100/100

Score: 100

User: dentenplay5555

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-05 14:01:47

#include <iostream>
using namespace std;
int main() {
  long long n,r=1,c=1,ne=1;cin>>n;
  for (int i=2;i<n;i++) {
    ne=r+c;
    r=c;
    c=ne;
  }
  cout<<c;
}