Hi, here's your problem today. This problem was recently asked by Microsoft:
You 2 integers n and m representing an n by m grid, determine the number of ways you can get from the top-left to the bottom-right of the matrix y going only right or down.
Example: n = 2, m = 2
This should return 2, since the only possible routes are: Right, down Down, right.
Here's the signature:
def num_ways(n, m): # Fill this in. print num_ways(2, 2) # 2