Question

with the use of switches, draw a flowchart and algorithm that will determine and print out the sum of all even and odd integer numbers from 1 to 20. note that the sum of even integer number for the given range would be equal to the sum of 2,4,6,8,10,12,14, 16, 18, 20 and for odd integer number it would be 1, 3, 5, 7, 9, 11, 13, 15, 17, 19.

Answer 1

Start
  Declare variable sumEven
  Declare variable sumOdd
  sumEven = 0
  sumOdd = 0
  for number = 1 to 20 do
      switch(number)
	   number mod 2 = 0: 
                 sumEven = sumEven + number
           number mod 2 = 1: 
                 sumOdd = sumOdd + number
      end if 
  end for
  Display sumEven 
  Display sumOd
Stop