Computer Science Canada :: View topic - My first if statement program. can't figure out problem.

var num1 : int
var num2 : int
var num3 : int
var set1 : int
var set2 : int
var set3 : int
var restart : string
loop
put "Enter your first number: " ..
get num1
put "Enter your second number: " ..
get num2
put "Enter your third number: " ..
get num3
%Number 1
if num1 > num2 and num1 > num3 then
set1 := num1
elsif num1 < num2 and num1 > num3 then
set2 := num1
elsif num1 < num2 and num1 < num3 then
set3 := num1
%Number 2
elsif num2 > num1 and num2 > num3 then
set1 := num2
elsif num2 < num1 and num2 > num3 then
set2 := num2
elsif num2 < num1 and num2 < num3 then
set3 := num2
%Number 3
elsif num3 > num1 and num3 > num2 then
set1 := num3
elsif num3 < num1 and num3 > num2 then
set2 := num3
elsif num3 < num1 and num3 < num2 then
set3 := num3
end if
if set1 = set2 or set1 = set3 or set2 = set3 then
put "Two of your numbers are the same."
elsif set1 not= set2 and set1 not= set3 and set2 not= set3 then
put set1, set2, set3
end if
put "Restart y/n: " ..
get restart
exit when restart = "n"
end loop

Author:	Cervantes [ Wed Nov 02, 2005 8:56 pm ]
Post subject:
In that if-[elsif ... elsif]-endif structure, only one if statement can be entered. In each one you give a value to one of set1, set2, or set3. The other two are never given a value. You then try to compare them, but you can't, since two of them never got a value. Fixing it would be to ensure that set1, set2, and set3 all have values. Alternatively, you could do away with set1, set2, and set3 (whatever they are).

Author:	xXInsanityXx [ Wed Nov 02, 2005 9:25 pm ]
Post subject:
Cervantes has already answered your question, but out of curiosity i have a couple of questions 1. What is the purpose of this program? 2. Is it trying to compare the numbers or trying to check if they are the same?