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Thread: Interpolation Search for Strings ??

  1. #1
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    Default Interpolation Search for Strings ??

    ok, this is for Int types. My problem is that i have to use InterpolationSearch for Strings. For numbers sure it works fine.

    Can someone help me with this algorithm please?

     public static int InterpolationSearch(int[] a, int x,int low,int high) {
          // x = key of search
           int mid;
       		while(low<=high)
    		{
    			mid=low+(high-low)*((x-a[low])/(a[high]-a[low]));
    			if(x==a[mid])
    				return mid+1;
    			if(x<a[mid])
    				high=mid-1;
    			else
    				low=mid+1;
    		}
    	    return -1;


  2. #2
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    Default Re: Interpolation Search for Strings ??

    You'll have to define what you mean by addition/subtraction between different strings since there's no default definition for what these mean.

  3. #3
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    Default Re: Interpolation Search for Strings ??

    ok lets say i have an array with 10000 codes in it : ex ACF02592
    DAK30103
    PMD15123
    GFP65159
    DTO31914
    FIE58434
    HTK71910
    RKB17101
    OGE14649
    MLK12111
    DOB31414
    FSA51807
    ............
    , which is afterwards sorted with a quick sort.

    my problem is exactly in
    addition/subtraction between different strings
    . Can Strings like that have operators like +,-,*,/ used on them ??

    ive have come up with this "theory"in my mind : taking the string, then seperate it into two halves , the numbers and the letters. Then convert each letter into it apropriate Number,(i think on keyboard each letter reffers to a set of numbers) then merge it together and convert the whole thing from String to Int. Then send this new array into interpolationsearch, where now you will have only integers and it will worl fine.

    The problem is this is all just a theory, and not sure how or what methods to use to do it, and if it will even work.

    I know it has to be a quicker way.

  4. #4
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    Default Re: Interpolation Search for Strings ??

    NEVER MIND , SOLVED IT MY SELF, THANKS THOUGH FOR THE REPLY

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