Hack
Now
EN
Login
Register
HackNow
Zina (Climbing Stairs) | HackNow
Go back
Reading Mode
Problem
Submissions
Zina (Climbing Stairs)
lock
UZ only
Qiyin
25 points
1 s
256 MB
Input format
Output format
Examples
1
1
Example #1
Input
3
Output
3
Solution editor
Python 3
Clear
Language
PYTHON
UTF-8
Tab
4 spaces
Ctrl
+
Enter
Submit
Submit
HackNowHackNow