Black Jack input and output

Question

samantha 2022-12-7

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https://ww2.mathworks.cn/matlabcentral/answers/1872842-black-jack-input-and-output

评论： Arif Hoq 2022-12-8

Hello, I am writing a function called check_possibilities.m where it takes as input the vector possibilities, and returns as output either I get stuck on the largest element of possibilities which is greater than or equal to 17, and less than or equal to 21.

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Walter Roberson 2022-12-7

So if "all" elements of the vector are greater than 21 return scalar 999, if "all" elements are 16 or lower return scalar -999 and otherwise return max of the vector?

Walter Roberson 2022-12-7

Suppose that the vector of possibilities is [7 17] . Should it say "Oh, at least one value is in the range 17 to 21, so hold" ? Or should it say "Oh, at least one value is not in that range, so ask for another card" ?

If the current values were [11 21] you would certainly want to hold, but at [7 17] you might want to take another card in hopes of getting higher than 17 without going bust.

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Answer 1

Arif Hoq 2022-12-7

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try this:

a=[9 13];
output_1=check_possibilities(a)
output_1 = -999
b=[23 34];
output_2=check_possibilities(b)
output_2 = 999
c=[9 20 19 22];
output_3=check_possibilities(c)
output_3 = 20
function y = check_possibilities(Arg1)
    if min(Arg1) > 21
        y=999;
    end
    if min(Arg1) < 21
        y=-999; 
    end
    if max(Arg1(Arg1>=17 & Arg1<=21)) >=17 & max(Arg1(Arg1>=17 & Arg1<=21))<=21
        y=max(Arg1(Arg1>=17 & Arg1<=21));
    end
end