This is a SoloLearn Question, is my answer wrong?

Question

what is the out put of this code?
int n = 5;
int m = 7;
int z = 6;

if (++n < m & z==n++)
Console.Write(m);
else
Console.Write(n);

My Answer: 7

Answer 1

yeah thank you @jeth

Answer 2

++n and n++

do you know the difference . you are wrong there in prefix and suffix.

Answer 3

There is a big difference between postfix and prefix versions of ++ .

In the prefix version (i.e., ++i ), the value of i is incremented, and the value of the expression is the new value of i . <---. This one, the value is new.

In the postfix version (i.e., i++ ), the value of i is incremented, but the value of the expression is the original value of i .

Let's analyze the following code line by line:
int i = 10 ; // (1)
int j = ++i; // (2)
int k = i++; // (3)

1. i is set to 10 (easy).
2. Two things on this line:
i is incremented to 11 .
The new value of i is copied into j. So j now equals 11 .
3. Two things on this line as well:
i is incremented to 12 .

The original value of i (which is
11 ) is copied into k . So k now equals 11 .

So after running the code, i will be 12 but both j and k will be 11.

The same stuff holds for postfix and prefix versions of -- .

@copyright of stackoverflow

Answer 4

Your answer is right.

Answer 5

but, solo says I'm wrong.

Answer 6

Solo says incorrect. You can test this code in IDE and see that it outputs 7.

Answer 7

yeah I did that.

Answer 8

++n increments value BEFORE comparing while n++ do it AFTER comparing.

Answer 9

So did you read that and understood why answer is 7? Here is playground test btw:
https://code.sololearn.com/ceGjD6IRqhLs/?ref=app

Answer 10

yeah thanks @jeth