Thread: Pls Help me with this problem...

Heres a clue, call it a nudge in the right direction if you will...

"Do some work"

Then post some kind of effort that shows at least you have bothered to think about how to do it. Instead of just copying and pasting your problem out.

Originally Posted by rogster001

Heres a clue, call it a nudge in the right direction if you will...

"Do some work"

Then post some kind of effort that shows at least you have bothered to think about how to do it. Instead of just copying and pasting your problem out.

btw..do you understand what he wants to do? Because, I don't..but it looks like it might be good for a beginner like me to program..

so x and y are the inputs and z is the result

but what should we do, or rather do you want to do on x and y

i get this part
12345 >> 15 >> 6 >> 6
99999 >> 45 >> 9 >> 9
but it doesn't make sense with this:



prolink24
Pls Help me with this problem...
Gregorio is very interested in discovering properties of non-negative integers. In one of his mathematical excursions, he tried adding all the digits of a number. Of course he ended up with a new number. He performed the same process using this new number and he got another number. If this process is one repeatedly, he realized that it always converge to a number. For example, the number 12345 converges to 6 and 99999 converges to 9.
12345 >> 15 >> 6 >> 6
99999 >> 45 >> 9 >> 9
Gregorio tasked himself in discovering the number of non-negative integers from x to y that converge to a given number z. Help Gregorio develop a program that will automate this task.

INPUT FORMAT
The input consists of several input lines. Each input line consists of three non-negative integers: x, y, and z. The numbers x and y are respectively the start and end points of the given range of integers. The number z is the point of convergence.

OUTPUT FORMAT
For each input line, output the number of non-negative integers from x to y that converge to z. If
x > y then output 0.

SAMPLE INPUT
12345 12347 7


SAMPLE OUTPUT
1

how did you get 1 as output?

btw..do you understand what he wants to do?

mate a post like that gets about one nanosecond of reading time in my case.

After reading it i see it is purest wofflese, it could be an interesting puzzle if it were explained properly, at present it makes about 0 sense, its like 'so what'? obviously you can expect a number? is there supposed to be some kind of special relationship going on?

how did you get 1 as output?

He means essentially 'true or false'

I think its supposed to (or i would) output each number 'string' tested and then show a 0 or 1 for its result
it would probably be cool to show each number stepping down to its final figure but that has not been stated as a requirement.

Originally Posted by rogster001

mate a post like that gets about one nanosecond of reading time in my case.

harsh..lol

but yeah, it made sense until the very end..and I am like..wt..f!!
hopefully the OP clarifies what he wants

Originally Posted by Eman

btw..do you understand what he wants to do? Because, I don't..but it looks like it might be good for a beginner like me to program..

It's numerology....

12345 = 1 + 2 + 3 + 4 + 5 = 15 = 1 + 5 = 6

1900 + 45 = 1945 = 1 + 9 + 4 + 5 = 19 = 1 + 9 = 10 = 1 + 0 = 1

You keep adding the individual digits of a number until you resolve (converge) it to a single digit number...

yeah I got that part, I am not sure as to how he got 7 with this:

12345 12347 7

perhaps he meant 9?

No, he got 1 with that, not 7. (Remember, the output is a count, not the result of any particular recursive sum.)

the reason I am asking is that..if 1 and 0 are the respective output
why was is
Sample Output 2 for the first input?

Originally Posted by Eman

the reason I am asking is that..if 1 and 0 are the respective output
why was is
Sample Output 2 for the first input?

Because the recursive sum of the digits of 1 and 10 are both 1, hence the count is 2.

Originally Posted by laserlight

Because the recursive sum of the digits of 1 and 10 are both 1, hence the count is 2.

yeah..so the count for this:
12345 12347 7
is 0?

No, it is 1. I don't know (and don't care) which of 12345, 12346 and 12347 is the one, but whatever it is it took me about 2 minutes to write and run a program to determine that the answer was 1. Do the same and modify it to find out.

oh, I see.
now while it took you 2mins..give me 20hrs

Ok.. i managed to do it..the most inefficient way but it works..

so if x > y output 0
otherwise I should output the count?