Answer to Question #278742 in Algorithms for Moon

Question

The challenge is to find all the pairs of two integers in an unsorted array that sum up to a given S.

For example, if the array is [3, 5, 2, -4, 8, 11] and the sum is 7, your program should return [[11, -4], [2, 5]] because 11 + -4 = 7 and 2 + 5 = 7.

Answer 1

Start 
  Declare array array
  Declare array array2d
  Declare variable s
  Read array from the keyboard
  Read s
  for i = 0 to array length do
    for j = 1 to array length-1 do
      sum=array[i]+array[j]
      if sum=s then
        Set array2d = [array[i],array[j]]
      end if
    end for
  end for
  Display array2d
Stop