Re: [algogeeks] Intersection of arrays

2011-10-27 Thread mohit verma
I think , in the worst case this hashing technique 'll take O(n^(k-1)) time? so i wud stick with sorting idea with confirm : O(mlogm) + O(m) time complexity where m is avg length of arrays. On Tue, Oct 25, 2011 at 6:02 PM, kumar raja wrote: > Dheeraj can u please tell me how to keep track count

Re: [algogeeks] Intersection of arrays

2011-10-25 Thread kumar raja
I have got an idea I will construct (k-1) hash tables for the 2 to k array elements. Now starting at the 1st element in 1st array i will search for it in all the (k-1) hash tables in O((k-1)*1) time. So for n elements it would take O( n*(k-1)) time.. Is my approach correct,please correct me if i

Re: [algogeeks] Intersection of arrays

2011-10-25 Thread kumar raja
Dheeraj can u please tell me how to keep track count for an element ,in hash table. I want the exact structure of the hash table The hash function uses the input as the elements value ,and stores it in some slot by computing hash function..then where is the question of storing count for that nu

Re: [algogeeks] Intersection of arrays

2011-10-25 Thread Dheeraj Sharma
use hashing.. let the no. of array be 1 to K increment the count of element for that array..(in hash table) only if its count value in hash table is one less then the array no.(which means that..it is present in all the arrays..preceding it) now search the hash table..in which element count is equa

[algogeeks] Intersection of arrays

2011-10-24 Thread kumar raja
Find intersection of K unsorted array of N elements each. Intersection consists of elements that appear in all the K arrays. what data structure is useful here?? -- Regards Kumar Raja M.Tech(SIT) IIT Kharagpur, 10it60...@iitkgp.ac.in -- You received this message because you are subscribed to