00:01
Here on this problem, we have six squares that we are going to be filling in with colors.
00:06
So instead of squares, i'm just going to draw boxes here, so we've got six whites here that we're going to fill it.
00:16
Now we have 10 different colors that we can use here, but the catch is that we don't want consecutive squares to be filled with the same color.
00:26
Now starting this out here, this means we have 10 options that we can have for that first square.
00:31
And you put any of those 10 there in that first one.
00:35
Now in the second square, we only have nine options left.
00:39
You just can't use whatever you put in that first square.
00:44
And here in that next square, you still have nine options...