1
I’m having a problem in Visual G. It’s a college exercise (ADS - 1st Semester).
I need to create an even or odd number identifier, however, without using MOD, division or multiplication, only sum and subtraction and only with commands Escreva/Escreval, leia, se, entao and senao. I’ve tried it many ways but so far it hasn’t worked.
Could someone help me? Follow my code:
Var
num:inteiro
Inicio
escreva("Olá usuário, digite um número: ")
leia (num)
se num +2 = 2,4,6,8,0 entao
escreva("Este número é par!")
senao
escreva("Este número é impar!")
fimse
Fimalgoritmo
Hello @Azerus, welcome to Sopt. Put the code you already have, and have tried, so we can help you better.
– João Martins
"however, without using MOD, Division or Multiplication" very difficult without using this, I think you first need to solve the math problem before thinking about the algorithm, because according to the website brasilescola.uol.com.br: "The pairs are those ending in 0, 2, 4, 6 or 8. The odd ones are those that are not even and are finished in 1, 3, 5, 7 or 9.", different than everyone thinks that, even number is the one who divide by 2 does not bring rest, which is a truth, but...
– Ricardo Pontual
looking at that other definition, you need to take the number to see its last digit, think about it...
– Ricardo Pontual
@Joãomartins This is the code I’m using: Var num:integer Home type("Hello user, type a number: ") read (num) if a +2 = 2,4,6,8,0 then type("This number is even!" ) senao type("This
– Azerus
@Azerus click the button
editarto edit your question and enter the code in it providing more details of the problem.– gato
@clear cat, ready!
– Azerus
@Azerus You want to create an algorithm that identifies the even or odd number without using a mathematical formula?
– gato
@exact cat, only with sum and subtraction.
– Azerus
@Azerus then you are using mathematics, whether you intend to use sum or subtraction.
– gato
@cat yes, just sum and subtraction...
– Azerus