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  • Read cookies in silverlight

    - by Dharam Narayan
    hi, I have an ASP.NET MVC application. In this after user get Sign in .We set the a cookie for the user who logged in using FormsAuthentication.SetAuthCookie(userName, false). In other page we get the Cookies using the FormsAuthentication.GetAuthCookie(userName]) . This cookie values as string is then set in the Response.Cookies["username"].Value = cookiesvalue . We have .aspx page in the same application that downloads silverlight application .Silverlight reads the cookies using the code string[] cookies = HtmlPage.Document.Cookies.Split(';'); The problem is that once session expires in the application,silverlight cannot read the cookie value. After the session expires we again set the cookies in headers using the Response.Cookies["username"].Value = cookiesvalue . But still silverlight application cannot read this cookie . Thanks in Advance DNM

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  • Finding if a Binary Tree is a Binary Search Tree

    - by dharam
    Today I had an interview where I was asked to write a program which takes a Binary Tree and returns true if it is also a Binary Search Tree otherwise false. My Approach1: Perform an inroder traversal and store the elements in O(n) time. Now scan through the array/list of elements and check if element at ith index is greater than element at (i+1)th index. If such a condition is encountered, return false and break out of the loop. (This takes O(n) time). At the end return true. But this gentleman wanted me to provide an efficient solution. I tried but I was unsuccessfult, because to find if it is a BST I have to check each node. Moreover he was pointing me to think over recusrion. My Approach 2: A BT is a BST if for any node N N-left is < N and N-right N , and the INorder successor of left node of N is less than N and the inorder successor of right node of N is greater than N and the left and right subtrees are BSTs. But this is going to be complicated and running time doesn't seem to be good. Please help if you know any optimal solution. Thanks.

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