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Binary search tree questions. Please help =)
Post 302879215 by Jill Ceke on Wednesday 11th of December 2013 10:11:39 AM
12-11-2013
Binary search tree questions. Please help =)
I have some questions about certain placement of child nodes since I'm just learning BSTs and it's quite confusing even after reading some sources and doing some online insertion applets. Let's say I want to add nodes 5,7,3,4 to an empty basic BST.
Ok I understand that the left child must be less than the parent AND less than or equal to the right child from that same parent. I follow it until we add the 4 node. How do we determine that the insertion of 4 goes to the bottom right leaf position of 3 instead of the bottom left leaf position? Also, doing a AVL insertion of nodes 5,18,3,7,11 yielded some surprising position placements. Inserting the fourth node, 7, went down through 18 instead of 3. Is there a particular reason why? Assuming that is the correct way, inserting 11 would switch the 11 and 18 spots, but wouldn't having 18 as the parent node, 7 as left child, and 11 as right child adhere to the principle of left child smaller than parent and smaller or equal to right child? I'm confused! I would appreciate any help. Thank you!
insert 7
insert 11
Ok I understand that the left child must be less than the parent AND less than or equal to the right child from that same parent. I follow it until we add the 4 node. How do we determine that the insertion of 4 goes to the bottom right leaf position of 3 instead of the bottom left leaf position? Also, doing a AVL insertion of nodes 5,18,3,7,11 yielded some surprising position placements. Inserting the fourth node, 7, went down through 18 instead of 3. Is there a particular reason why? Assuming that is the correct way, inserting 11 would switch the 11 and 18 spots, but wouldn't having 18 as the parent node, 7 as left child, and 11 as right child adhere to the principle of left child smaller than parent and smaller or equal to right child? I'm confused! I would appreciate any help. Thank you!
insert 7
insert 11
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LEARN ABOUT CENTOS
dpkg-preconfigure
DPKG-PRECONFIGURE(8) Debconf DPKG-PRECONFIGURE(8) NAME
dpkg-preconfigure - let packages ask questions prior to their installation SYNOPSIS
dpkg-preconfigure [options] package.deb dpkg-preconfigure --apt DESCRIPTION
dpkg-preconfigure lets packages ask questions before they are installed. It operates on a set of debian packages, and all packages that use debconf will have their config script run so they can examine the system and ask questions. OPTIONS
-ftype, --frontend=type Select the frontend to use. -pvalue, --priority=value Set the lowest priority of questions you are interested in. Any questions with a priority below the selected priority will be ignored and their default answers will be used. --terse Enables terse output mode. This affects only some frontends. --apt Run in apt mode. It will expect to read a set of package filenames from stdin, rather than getting them as parameters. Typically this is used to make apt run dpkg-preconfigure on all packages before they are installed. To do this, add something like this to /etc/apt/apt.conf: // Pre-configure all packages before // they are installed. DPkg::Pre-Install-Pkgs { "dpkg-preconfigure --apt --priority=low"; }; -h, --help Display usage help. SEE ALSO
debconf(7) AUTHOR
Joey Hess <joeyh@debian.org> 2018-02-28 DPKG-PRECONFIGURE(8)