@sanjay can you please tell how did you arrive at that solution ?

On Sun, Sep 25, 2011 at 12:32 PM, Yogesh Yadav <medu...@gmail.com> wrote:

> +1 Gohana....
>
>
> On Sun, Sep 25, 2011 at 12:28 PM, Sanjay Rajpal <srn...@gmail.com> wrote:
>
>> let the number of digits be n
>> then answer would be ((n+9)! ) / (9! * n!)
>>
>>
>> Sanju
>> :)
>>
>>
>>
>> On Sat, Sep 24, 2011 at 11:51 PM, Yogesh Yadav <medu...@gmail.com> wrote:
>>
>>> mistake in last post...it was not factorial....sum upto n i.e =n(n+1)/2
>>>
>>> i.e 10! is wrong ...it will be 10(10+1)/2
>>>
>>>
>>> ....
>>>   On Sun, Sep 25, 2011 at 12:14 PM, Yogesh Yadav <medu...@gmail.com>wrote:
>>>
>>>>        n=1     n=2       n=3       n=4
>>>>          0        10        10!        (10!)!
>>>>          1          9          9!         (9!)!
>>>>          2          8          8!
>>>>          3          7          7!
>>>>          4          6          6!
>>>>          5          5          5!
>>>>          6          4          4!
>>>>          7          3          3!
>>>>          8          2          2!
>>>>          9          1          1!
>>>> sum  10         55        220      and so on....
>>>>
>>>>
>>>>
>>>> On Sun, Sep 25, 2011 at 11:46 AM, Sanjay Rajpal <srn...@gmail.com>wrote:
>>>>
>>>>>  Can you plz tell the answer for
>>>>> for 3 answer=?
>>>>> nd for 4 answer=?
>>>>> Sanju
>>>>> :)
>>>>>
>>>>>
>>>>>
>>>>> On Sat, Sep 24, 2011 at 10:39 PM, Dheeraj Sharma <
>>>>> dheerajsharma1...@gmail.com> wrote:
>>>>>
>>>>>> can u plz be more..clear ..with wat the input will consist of..
>>>>>> wat does this mean
>>>>>> "for 2 answer=55"
>>>>>> does that mean..that how many non decreasing digits can be formed by 2
>>>>>> digit num
>>>>>>
>>>>>>
>>>>>> On Sun, Sep 25, 2011 at 1:08 AM, shady <sinv...@gmail.com> wrote:
>>>>>>
>>>>>>> A number is said to be made up of non-decreasing digits if all the
>>>>>>> digits to the left of any digit is less than or equal to that digit. 
>>>>>>> for eg.
>>>>>>> 1122, 234, 2
>>>>>>>
>>>>>>> 0000, 0011 is a possible 4 digit non decreasing number
>>>>>>>
>>>>>>> so given a number n, how many n digit numbers exist ?
>>>>>>>
>>>>>>> for 2 answer = 55
>>>>>>>
>>>>>>> Can someone post complexity and their approach....
>>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> *Dheeraj Sharma*
>>>>>> Comp Engg.
>>>>>> NIT Kurukshetra
>>>>>>
>>>>>>
>>>>>>
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