I feel confused when learning Red Black Tree,actually I don't know why we need NIL as leaf in the tree and it seems useless.Could any one can help me?Thanks in advance:)
Related Questions in DATA-STRUCTURES
- Facebook Api - Albums/Photos/Comments
- How to get Facebook subscriber count + friend count
- Firebase facebook authentication not working
- Facebook iOS SDK 4 error info.plist
- Why don't any of my facebook share buttons work?
- Can't perform authentication through facebook with Parse
- PlayN and Firefox issues
- How do I stop the facebook send widget from going off the screen?
- Add extended permissions - Facebook
- Pass image, summary, URL to Facebook share button in ASP.NET MVC
Related Questions in RED-BLACK-TREE
- Facebook Api - Albums/Photos/Comments
- How to get Facebook subscriber count + friend count
- Firebase facebook authentication not working
- Facebook iOS SDK 4 error info.plist
- Why don't any of my facebook share buttons work?
- Can't perform authentication through facebook with Parse
- PlayN and Firefox issues
- How do I stop the facebook send widget from going off the screen?
- Add extended permissions - Facebook
- Pass image, summary, URL to Facebook share button in ASP.NET MVC
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
The main reason it has NIL is to always balance the tree, two children per parent for example. If it wasn't properly balanced, in the worst case it would just be a glorified linked list not getting the benefits of a red black tree.