sorry n*m complex where n rows and m col
but correct for space pzl and it uses two xtras array row and col
On Fri, Sep 30, 2011 at 3:42 PM, rahul sharma <rahul23111...@gmail.com>wrote:
> i cant find xact soln on previous thread????i have sol with n*n complexity
> but used space,, i.e
>
> scan whole matrix
> if( matrix([i][j]==1)
> {
> row[i]=1;
> col[j]=1;
> }
>
> scan agin
> if(row[i]==1 ||| col[j]==1)
> matrix[i][j]=0;
>
>
> two n*n loops so takes n*n and uses space too plz give me opt. soln
>
> On Fri, Sep 30, 2011 at 3:08 PM, Yogesh Yadav <medu...@gmail.com> wrote:
>
>> Already discussed
>>
>>
>> https://groups.google.com/group/algogeeks/browse_thread/thread/8a3e1a6665702f54/66bb2e804b43ae1d?hl=en&lnk=gst&q=MS+question+ankur#66bb2e804b43ae1d
>>
>> .....
>>
>>
>> On Fri, Sep 30, 2011 at 2:59 PM, sumit kumar pathak <
>> sumitkp1...@gmail.com> wrote:
>>
>>> *find all the zeros in first iteration and store (size = array bool
>>> [2n])*
>>> *and then make zero. *
>>> *time = O(n^2)*
>>> *space = O(n)*
>>> *
>>> *
>>> *case 2:*
>>> * if any zero whole matrix zero, (once we get a zero its row and column
>>> will become zero which in turn lead to whole matrix being zero).
>>> *
>>> *
>>> *regards
>>> - Sumit Kumar Pathak
>>> (Sumit/ Pathak/ SKP ...)
>>> *Smile is only good contagious thing.*
>>> *Spread it*!!!!!
>>>
>>>
>>>
>>>
>>> On Fri, Sep 30, 2011 at 2:38 PM, rahul sharma
>>> <rahul23111...@gmail.com>wrote:
>>>
>>>> it will zero only row not column
>>>>
>>>> On Fri, Sep 30, 2011 at 12:25 PM, Tamanna Afroze
>>>> <afroze...@gmail.com>wrote:
>>>>
>>>>>
>>>>> if(matrix[i][j]==0){
>>>>> for(int j=0;j<n;j++)
>>>>> matrix[i][j]=0;
>>>>> }
>>>>>
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