so we shoul d aslo add loop at the top to find only for firrst row and
column the initial values
On Tue, Oct 4, 2011 at 8:30 AM, Ashish Goel <ashg...@gmail.com> wrote:
> 0 in 0th row as well as 0 in 0th col and hence true
>
>
> Best Regards
> Ashish Goel
> "Think positive and find fuel in failure"
> +919985813081
> +919966006652
>
>
> On Tue, Oct 4, 2011 at 8:28 AM, rahul sharma <rahul23111...@gmail.com>wrote:
>
>> row0 and col0 initilayy true coz we have 0 in 0 row???or these r default
>> values?
>>
>>
>> On Tue, Oct 4, 2011 at 8:07 AM, Ashish Goel <ashg...@gmail.com> wrote:
>>
>>> 1 1 0 1
>>> 0 1 1 1
>>> 1 1 1 1
>>> 1 1 1 0
>>>
>>> row0 is true
>>> col0 is true
>>>
>>> for (int i=1; i<n;i++)
>>> for (int j=1;j<m;j++)
>>> if (a[i][j] == 0) {a[i][0]=0; a[0][j]=0;}
>>>
>>> now after this
>>> 1 1 0 0
>>> 0 1 1 1
>>> 1 1 1 1
>>> 0 1 1 0
>>>
>>> for (int i=1; i<n;i++)
>>> if (a[i][0] ==0) for (int j=1; j<m;j++) a[i][j]=0;
>>> for (int j=1; i<m;j++)
>>> if (a[0][j] ==0) for (int i=1; i<n;i++) a[i][j]=0;
>>>
>>> after this
>>> 1 1 0 0
>>> 0 0 0 0
>>> 1 1 0 0
>>> 0 0 0 0
>>>
>>>
>>> because of row0 and col0 vars
>>>
>>>
>>> final output is
>>> 0 0 0 0
>>> 0 0 0 0
>>> 0 1 0 0
>>> 0 0 0 0
>>>
>>> Best Regards
>>> Ashish Goel
>>> "Think positive and find fuel in failure"
>>> +919985813081
>>> +919966006652
>>>
>>>
>>> On Tue, Oct 4, 2011 at 7:49 AM, rahul sharma <rahul23111...@gmail.com>wrote:
>>>
>>>> @ashish can u give an xample.....plz...i have read a lot archives ...but
>>>> cant find in 0(1) space....u using 2 var only...plz give xample...nended
>>>> urgent.thnx
>>>>
>>>>
>>>> On Tue, Oct 4, 2011 at 7:26 AM, Ashish Goel <ashg...@gmail.com> wrote:
>>>>
>>>>> keep two var row0 and col0 for checking if there is any 0 in row0flag
>>>>> /col0flag
>>>>>
>>>>> now walk over elements from 1,1 to n,m and set corresponding entry in
>>>>> 0th row /column if you hit a zero.
>>>>>
>>>>> now walk over zeroth column and rwo and set the complete row/col if a 0
>>>>> is there in 0th row/col.
>>>>>
>>>>> after this based on row0flag/col0flag, set oth col/row values to 0.
>>>>>
>>>>> Best Regards
>>>>> Ashish Goel
>>>>> "Think positive and find fuel in failure"
>>>>> +919985813081
>>>>> +919966006652
>>>>>
>>>>>
>>>>>
>>>>> On Mon, Oct 3, 2011 at 12:08 PM, rahul sharma <rahul23111...@gmail.com
>>>>> > wrote:
>>>>>
>>>>>> yeah it is wrong......i have a solution but uses 0(n+m) space.....i
>>>>>> need it in 0(n*m) tymand o(1) space
>>>>>>
>>>>>>
>>>>>> On Mon, Oct 3, 2011 at 11:55 AM, shady <sinv...@gmail.com> wrote:
>>>>>>
>>>>>>> search archives :-/
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Oct 3, 2011 at 11:47 AM, pranav agrawal <
>>>>>>> pranav.is.cool.agra...@gmail.com> wrote:
>>>>>>>
>>>>>>>> @rahul sharma, i ran this code, it is producing wrong answer :|
>>>>>>>>
>>>>>>>> check it, http://codepad.org/THv1hJq1
>>>>>>>>
>>>>>>>> anyone with correct solution?
>>>>>>>>
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