Kata

You're given an M * N matrix of coins, some flipped to heads, some tails. And you want to make it so they are all heads. For example:

H T H
T H H
T H T

You have one available operation: flip(row,column). This function flips every coin from index [0,0] to [row,column] inclusive and returns the resulting matrix. So if flip(1,1) were applied to the matrix above, the result would be:

T H H
H T H
T H T

The target for this example would be:

H H H
H H H
H H H

Coin values are stored as booleans, for simplicity.

Your function shouldn't return anything. It's not necessary to minimize the number of flips. Again, remember flip returns the new matrix.