Submission

Status:

-PPPPPPPPP

Subtask/Task Score:

90/100

Score: 90

User: Dorrech_1

Problemset: อนุกรม

Language: python

Time: 0.011 second

Submitted On: 2026-04-25 10:46:04

n=int(input())
a=[1,1,2]
if n<4 :
    print(a[n-1])
else :
    for i in range (0,n-2) :
        a[2]=a[1]+a[0]
        k=a[1]
        a[1]=a[2]
        a[0]=k
print(a[2])