Submission

Score: 100

User: spammer_destroyer

Problemset: อนุกรม

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-12 12:46:50

//c1_bkk64_2    
 #include <iostream>
using namespace std;
int main() {
  long long int x1=1,x2=1,temp;
  long long int i;
  long long int n;
  cin>>n;
  for(i=1;i<n;i++) {
    temp=x1+x2;
    x1=x2;
    x2=temp;
  }
  cout << x1;
  return 0;
}