PLEASE HELP-INTERVIEW QUESTION

[adamtosaki]

Hello! I got a really interesting question at a company, and I can't seem to find an answer at all. It really bothers me, please help me.

  #include <cstdio>
int main()
{
    int num = 123456789;
    int res = 0;
    for (int i = 0; i<111111111; i++)
    {
    res=(res+num)%1000000000;
    }
    printf("06 %09d", res);
    return 0;
    }

I should declare num so the output is my mobile number, 305089171.
Any idea how to do that?

[theturk1234]

I doubt this could be as simple as
int num = 305089171;

You wouldn't post such a simple question here, would you?
There's probably another problem, so let's hear it.

[adamtosaki]

It should be something simple,
they said to "What should "num" be so the output is your mobile number?"
Or something like that.

[theturk1234]

Oh, I see. The output has to be your mobile number.
Okay, that one is a little difficult, let me think about it.

[adamtosaki]

Thank you in advance :)

[adamtosaki]

Answer is 254197461, dont know why yet, though

[SamuelAdams]

Since they named it num, I think they want you to say num should be a signed long long. It could be a string, but could not be a int, and you probably wouldn't want it to be a double since that would have decimals.

The best answer would probably be "a 8bit variable or string".

Edit. That assumes your in the US and your ph# is 9 digits, if you have a 8 digit number you could use int.