got it..thnx yr
On Tue, Oct 4, 2011 at 8:34 AM, rahul sharma <rahul23111...@gmail.com>wrote:
> 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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