Talk:Two sum: Difference between revisions

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and the desired sum is odd. -- [[User:Hajo|Hajo]] ([[User talk:Hajo|talk]]) 13:53, 5 October 2016 (UTC)
and the desired sum is odd. -- [[User:Hajo|Hajo]] ([[User talk:Hajo|talk]]) 13:53, 5 October 2016 (UTC)


One way of putting it is that the proposed return type (list of integers '''[Int]''') is not quite right yet. The structure of the problem would be more clearly expressed by requiring the return of a list of lists of integers '''<pre>[[Int]]</pre>'''
One way of putting it is that the proposed return type (list of integers '''[Int]''') is not quite right yet. The structure of the problem would be more clearly expressed by requiring the return of a list of pairs of integers '''<pre>[(Int, Int)]</pre>'''
i.e. Returning an empty list where no solutions are found, and a list of more than one integer pair where multiple solutions are found.
i.e. Returning an empty list where no solutions are found, and a list of more than one integer pair where multiple solutions are found.