Problem 391. Poker Series 11: selectBestHand

that took a really long time to do...

i think that it might be beneficial to return more information in the subfunctions such as the kicker(s) and the values of the cards themselves.

It's not that hard, using a modified hand card representation (sorting columns as A,K...2 and adding a repeated A for the straights) makes the comparison of two hands trivially simple (sortrows)

What i believe might have been beneficial would be to have the hand cards columns sorted by decreasing card value -like its rows- since all computations look much cleaner that way ...

scratch the above, it does need more work (and we need more test samples)

When deciding the best hand among two hands of the same rank (e.g. both players have a pair of 5's) what is more important, the suits of the hand or the rank of the kicker(s)? (i guess the latter but the test suite does not discriminate)

perhaps you could add these tests (most of the current solvers fail one or the other): TEST1: hm1=[ 0 0 0 0 0 0 0 0 0 1 0 1 0; 0 0 0 0 0 0 0 0 0 0 0 1 0; 0 0 0 0 0 0 0 0 0 1 0 0 0; 0 0 0 0 0 0 0 0 0 0 0 1 0];
hm2=[ 0 0 0 0 0 0 0 0 0 0 0 0 0; 1 0 0 0 0 0 0 0 0 0 0 1 0; 1 0 0 0 0 0 0 0 0 0 0 1 0; 0 0 0 0 0 0 0 0 0 0 0 1 0];
out.hm{1} = hm1;
out.hm{2} = hm2;
out.winner = 2;
TEST2: hm1=[ 0 0 0 1 1 1 1 1 0 0 0 0 0; 0 0 0 0 0 0 0 0 0 0 0 0 0; 0 0 0 0 0 0 0 0 0 0 0 0 0; 0 0 0 0 0 0 0 0 0 0 0 0 0];
hm2=[ 0 0 0 0 0 0 0 0 0 0 0 0 0; 0 0 0 1 1 1 1 1 0 0 0 0 0; 0 0 0 0 0 0 0 0 0 0 0 0 0; 0 0 0 0 0 0 0 0 0 0 0 0 0];
out.hm{1} = hm1;
out.hm{2} = hm2;
out.winner = 0;

hm1=[1 0 0 0 0 0 0 0 0 0 0 0 1;1 0 0 0 0 0 0 0 0 0 0 0 0;1 0 0 0 0 0 0 0 0 0 0 0 0;1 0 0 0 0 0 0 0 0 0 0 0 0];
hm2=[1 0 0 0 0 0 0 0 0 0 0 0 0;1 0 0 0 0 0 0 0 0 0 0 0 0;1 0 0 0 0 0 0 0 0 0 0 0 0;1 0 0 0 0 0 0 0 0 0 0 0 1];
Is player 1 supposed to win in this case?

On a second thought.. shouldn't there be only one deck?

@albert: your example should be a tie (the card suits do not break ties; in fact they are not used at all for scoring). And I believe there is no limitation on the number of decks the hand cards come from...

Test case 7 is broken, the case is expecting matrices of type double in the output, but all other cases want matrices of type logical.

Test case 7 is confusing.

hm2 = [1 1 1 1 1 1 0 0 0 0 0 1 1
0 0 0 0 0 0 0 0 0 0 0 1 0
0 0 0 0 0 0 1 0 0 0 0 0 0
0 0 0 0 1 0 0 0 0 0 0 0 0];

om2 = [0 1 1 1 1 1 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0];

1. Why the StraightFlush including Ace is not considered as the BestHand for hm2?
2. How could the winner be 2, since the first player has Ace in its BestHand?

Seconding both Athi's & Andrew's posts

Player 2 has an ace in his hand but chooses to play 2 3 4 5 6
That's backwards

also, the double thing is 100% true. why switch from logical to double