given number and multiple matching

[karli]

I've tried to solve the problem for some time but still do not know how to do it, must ask for help.
There is given number and array, given number must match with array value (preferable) OR array values.

//EXAMPL 1
$gn=10;
$seq=array();
$seq["A"]=2;
$seq["B"]=2;
$seq["C"]=12;
$seq["D"]=6;
//OUTPUT MUST BE "A","B" and "D" because 2+2+6=$gn and 12!=10

//EXAMPL 2
$gn=10;
$seq=array();
$seq["A"]=1;
$seq["B"]=9;
$seq["C"]=10;
$seq["D"]=3;
//OUTPUT MUST BE "C" because 10=$seq and 1+9 are not preferable.

Does anyone have an idea of ​​how it might be solved?

[seandisanti]

1) is this for a challenge site? i'll still help, just curious because i am always on the look out for new challenges.

2) do you need to return every working combination, or any working combination?

[karli]

thank you seandisanti for your reply.
every working combination will be great.

[seandisanti]

you didn't answer number 1 and i see the answer to number 2 in re-reading your original post.

[karli]

No, its not intended to challenge anyone you. I just have a problem to my accounting program and do not know how to solve it. Any help is appreciated. Like I said, there is a number, which must be equal to the others (array)

[lanshan75]

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