When given a pair of ints, I need my code to be able to return the int that is closest to 21 without going over

Question

// blackjack(7,17) -> 17  
// blackjack(21, 16) -> 21  
// blackjack(19,23) -> 19  

public int blackjack(int a, int b) {

}

After this I am really unsure of how to go about writing this code.

Please make an effort to solve this yourself. If you fail, post the code you've tried and perhaps we can help you. — Fred Larson, Apr 25 '16 at 18:34
... I don't even know where to begin, that's why I don't have anything to show for it. — Savannah, Apr 25 '16 at 18:42
what happens if a)they are the same (e.g., `blackjack(16, 16);`) or are both over 21 (e.g., `blackjack(23, 22);`). In addition to not demonstrating effort, the problem is underspecified. — KevinO, Apr 25 '16 at 18:47

score 0 · Answer 1 · answered Apr 25 '16 at 18:50

0

Maybe something like this ?

private int blackjack(int a, int b)
{
    int aa = 21-a >= 0 ? 21-a : 22;
    int bb = 21-b >= 0 ? 21-b : 22;

    if ( aa > 21 && bb > 21 )
    {
        return -1;
    }

    return aa < bb ? a : b;
}

answered Apr 25 '16 at 18:50

Dennis van den Bogert

129
4

score -1 · Accepted Answer · answered Apr 25 '16 at 18:47

-1

Hi use this code.

if(a<=21 && b<=21){
    return Math.max(a, b);
}

This is a easy problem, try yourself next time.

answered Apr 25 '16 at 18:47

Alejandroppir

127
8

1

This doesn't handle the case of either `a` or `b` being over 21. – Fred Larson Apr 25 '16 at 19:21

When given a pair of ints, I need my code to be able to return the int that is closest to 21 without going over

2 Answers2

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