Use a merge sort to merge the rows throwing out duplicates.
Don

On Jan 8, 12:59 pm, Ravi Ranjan <[email protected]> wrote:
> You have a two dimensional array of size m*n. The
> elements in the rows are sorted and every row has
> unique elements means( in a row no two elements are same) but
> the elements can repeat across the rows.
> For example:
> you have following 2-D array:
> 2 5 7 9 14 16
> 3 6 8 10 15 21
> 4 7 9 15 22 35
> 7 8 9 22 40 58
> You are supposed to write an efficient function which
> will take upper 2-D array as input and will return a
> one-dimensional array with following properties:
> a) the 1-D array must contain all the elements of above
> 2-D array.
> b) the 1-D array should not have any repeated elements.
> c) all the elements should be in sorted order.
> For example:
> for the above 2-D array, the output should be:
> A [ ] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 21, 22, 35,
> 40, 58 }

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