Traditional Culture Encyclopedia - Traditional virtues - There is a staircase with 10 steps. It is stipulated that only two or three steps can be climbed at a time. How many different ways are there to climb 10 steps?

There is a staircase with 10 steps. It is stipulated that only two or three steps can be climbed at a time. How many different ways are there to climb 10 steps?

The different ways are as follows:

2+2+2+2+2= 10

2+2+3+3= 10

2+3+2+3= 10

2+3+3+2= 10

3+2+3+2= 10

3+2+2+3= 10

3+3+2+2= 10

So a * * * has seven different ways.