How many times will the following loop execute?

Question

int x = 1;
while (x++ < 5)
{
if (x % 2 == 0)
x += 2;
}

The answer is 2. I got 4, where am I going wrong?

1 % 2 != 0, therefore the if statement shouldn't execute. 1 % 2 = 1
I guess remainders always round up?

Since the if statement shouldn't execute, the function should loop 4 times because of the post-increment.

If the if statement was formulated with a / instead of a % the answer would be 2. Maybe there's a bug in the application's answer? It's a sheet response, not a program.

Answer 1

First loop:

while(x++ < 5) //x is 1
{
//x is 2 because x++
if(x % 2 == 0) //true
{
x += 2; //x is 4
}
}

Second loop:

if(x++ < 5) //x is 4
{
//x is 5 because x++
if(x % 2 == 0) //false
{
x += 2; //no effect
}
}

Third loop: is not executed because x++ < 5 is false

Answer 2

Thanks for the clarification. I was going through the forum on the question itself, and I found the answer.

I wasn't aware that the while command would execute regardless of the result of the if statement.

I thought the curly bracket statements needed to resolve prior to the rest of the function.

So modulus (%) doesn't grant the quotient, it just finds remainders if they exist.