The stair has n steps. Every times you can up one or two steps. Give all the different solutions to upstairs.

For example n = 4.

sols = {[1,1,1,1],[1,1,2],[1,2,1],[2,2]}

n = 5

sols = {[1,1,1,1,1],[1,1,1,1,2],[1,1,2,1],[1,2,1,1],[1,2,2],[2,1,1,1],[2,1,2],[2,2,1]}

Have fun!

Solve

Solution Stats

37 Solutions

8 Solvers

Last Solution submitted on Jul 13, 2026

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers8

Chris Cleveland David Hill Christian Schröder Lorenzo

Suggested Problems

More from this Author17

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!