U using extra space, if you using extra space, simple C++ implementation will be use a priority queue and do BFS.
On Wed, Feb 9, 2011 at 10:47 AM, jalaj jaiswal <[email protected]>wrote: > @algoseeker > > mine approach is also the same but m inserting the elements in a min heap > and you in a set.. i guess extraction of minimum element will be better in > terms of complexity if we use a heap > > > On Wed, Feb 9, 2011 at 10:01 AM, Ujjwal Raj <[email protected]> wrote: > >> I see a scope of optimization in the algo. >> In step 2. Before inserting the element a[i][j], you can make sure that >> a[i][j-1] and a[i-1][j] are in the set. If not then do no insert a[i][j] in >> the heap. (considering the boundary condition, if j-1 < 0 or i-1 < 0 then >> assume it is true) >> >> Correct me if I am wrong. >> >> >> On Tue, Feb 8, 2011 at 11:40 PM, algoseeker <[email protected]>wrote: >> >>> Just coded the solution, it worked on all the test cases described here >>> in this thread using the algo i described above :) >>> >>> The code is available at >>> https://github.com/algoseeker/Interview/tree/master/sorting >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Algorithm Geeks" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit this group at >>> http://groups.google.com/group/algogeeks?hl=en. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > > > -- > With Regards, > *Jalaj Jaiswal* (+919019947895) > Software developer, Cisco Systems > Final Year Undergraduate, > IIIT ALLAHABAD > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
